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+# centos7下使用docker安装postgresql服务(带plpython3u扩展)
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+
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+## 安装docker (使用root用户)
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+
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+ 1. 更新yum
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+ yum update
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+ 2. 安装必要的依赖
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+ yum install -y yum-utils device-mapper-persistent-data lvm2
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+ 3. 设置yum源(二选一)
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+ yum-config-manager --add-repo http://download.docker.com/linux/centos/docker-ce.repo(中央仓库)
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+ yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo(阿里仓库)
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+
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+ 4. 查看仓库中docker版本
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+ yum list docker-ce --showduplicates | sort -r
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+ 5. 安装docker
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+ yum install docker-ce-版本号
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+ (例如: yum install docker-ce-18.03.1.ce)
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+ 6. 启动docker并将docker加入开机启动
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+ 1). systemctl start docker
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+ 2). systemctl enable docker
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+
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+ 7. docker帮助
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+ docker --help
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+ docker 命令 --help
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+
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+## 创建镜像
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+
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+ 1. 创建临时工作目录
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+
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+ cd ~ && mkdir dockerTemp && cd dockerTemp
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+
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+ 2. 拷贝docker-entrypoint.sh 和 Dockerfile进临时工作目录
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+ (文件名大小写敏感, docker-entrypoint.sh 需要有可执行权限, chmod 777 docker-entrypoint.sh)
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+
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+
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+
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+<details>
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+<summary>docker-entrypoint.sh 内容</summary>
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+
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+ #!/usr/bin/env bash
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+ set -Eeo pipefail
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+ # TODO swap to -Eeuo pipefail above (after handling all potentially-unset variables)
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+
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+ # usage: file_env VAR [DEFAULT]
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+ # ie: file_env 'XYZ_DB_PASSWORD' 'example'
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+ # (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
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+ # "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
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+ file_env() {
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+ local var="$1"
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+ local fileVar="${var}_FILE"
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+ local def="${2:-}"
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+ if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
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+ echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
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+ exit 1
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+ fi
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+ local val="$def"
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+ if [ "${!var:-}" ]; then
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+ val="${!var}"
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+ elif [ "${!fileVar:-}" ]; then
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+ val="$(< "${!fileVar}")"
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+ fi
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+ export "$var"="$val"
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+ unset "$fileVar"
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+ }
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+
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+ # check to see if this file is being run or sourced from another script
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+ _is_sourced() {
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+ # https://unix.stackexchange.com/a/215279
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+ [ "${#FUNCNAME[@]}" -ge 2 ] \
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+ && [ "${FUNCNAME[0]}" = '_is_sourced' ] \
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+ && [ "${FUNCNAME[1]}" = 'source' ]
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+ }
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+
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+ # used to create initial postgres directories and if run as root, ensure ownership to the "postgres" user
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+ docker_create_db_directories() {
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+ local user; user="$(id -u)"
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+
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+ mkdir -p "$PGDATA"
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+ chmod 700 "$PGDATA"
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+
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+ # ignore failure since it will be fine when using the image provided directory; see also https://github.com/docker-library/postgres/pull/289
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+ mkdir -p /var/run/postgresql || :
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+ chmod 775 /var/run/postgresql || :
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+
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+ # Create the transaction log directory before initdb is run so the directory is owned by the correct user
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+ if [ -n "$POSTGRES_INITDB_WALDIR" ]; then
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+ mkdir -p "$POSTGRES_INITDB_WALDIR"
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+ if [ "$user" = '0' ]; then
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+ find "$POSTGRES_INITDB_WALDIR" \! -user postgres -exec chown postgres '{}' +
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+ fi
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+ chmod 700 "$POSTGRES_INITDB_WALDIR"
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+ fi
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+
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+ # allow the container to be started with `--user`
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+ if [ "$user" = '0' ]; then
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+ find "$PGDATA" \! -user postgres -exec chown postgres '{}' +
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+ find /var/run/postgresql \! -user postgres -exec chown postgres '{}' +
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+ fi
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+ }
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+
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+ # initialize empty PGDATA directory with new database via 'initdb'
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+ # arguments to `initdb` can be passed via POSTGRES_INITDB_ARGS or as arguments to this function
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+ # `initdb` automatically creates the "postgres", "template0", and "template1" dbnames
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+ # this is also where the database user is created, specified by `POSTGRES_USER` env
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+ docker_init_database_dir() {
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+ # "initdb" is particular about the current user existing in "/etc/passwd", so we use "nss_wrapper" to fake that if necessary
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+ # see https://github.com/docker-library/postgres/pull/253, https://github.com/docker-library/postgres/issues/359, https://cwrap.org/nss_wrapper.html
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+ if ! getent passwd "$(id -u)" &> /dev/null && [ -e /usr/lib/libnss_wrapper.so ]; then
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+ export LD_PRELOAD='/usr/lib/libnss_wrapper.so'
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+ export NSS_WRAPPER_PASSWD="$(mktemp)"
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+ export NSS_WRAPPER_GROUP="$(mktemp)"
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+ echo "postgres:x:$(id -u):$(id -g):PostgreSQL:$PGDATA:/bin/false" > "$NSS_WRAPPER_PASSWD"
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+ echo "postgres:x:$(id -g):" > "$NSS_WRAPPER_GROUP"
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+ fi
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+
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+ if [ -n "$POSTGRES_INITDB_WALDIR" ]; then
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+ set -- --waldir "$POSTGRES_INITDB_WALDIR" "$@"
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+ fi
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+
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+ eval 'initdb --username="$POSTGRES_USER" --pwfile=<(echo "$POSTGRES_PASSWORD") '"$POSTGRES_INITDB_ARGS"' "$@"'
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+
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+ # unset/cleanup "nss_wrapper" bits
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+ if [ "${LD_PRELOAD:-}" = '/usr/lib/libnss_wrapper.so' ]; then
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+ rm -f "$NSS_WRAPPER_PASSWD" "$NSS_WRAPPER_GROUP"
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+ unset LD_PRELOAD NSS_WRAPPER_PASSWD NSS_WRAPPER_GROUP
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+ fi
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+ }
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+
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+ # print large warning if POSTGRES_PASSWORD is long
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+ # error if both POSTGRES_PASSWORD is empty and POSTGRES_HOST_AUTH_METHOD is not 'trust'
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+ # print large warning if POSTGRES_HOST_AUTH_METHOD is set to 'trust'
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+ # assumes database is not set up, ie: [ -z "$DATABASE_ALREADY_EXISTS" ]
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+ docker_verify_minimum_env() {
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+ # check password first so we can output the warning before postgres
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+ # messes it up
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+ if [ "${#POSTGRES_PASSWORD}" -ge 100 ]; then
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+ cat >&2 <<-'EOWARN'
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+
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+ WARNING: The supplied POSTGRES_PASSWORD is 100+ characters.
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+
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+ This will not work if used via PGPASSWORD with "psql".
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+
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+ https://www.postgresql.org/message-id/flat/E1Rqxp2-0004Qt-PL%40wrigleys.postgresql.org (BUG #6412)
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+ https://github.com/docker-library/postgres/issues/507
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+
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+ EOWARN
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+ fi
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+ if [ -z "$POSTGRES_PASSWORD" ] && [ 'trust' != "$POSTGRES_HOST_AUTH_METHOD" ]; then
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+ # The - option suppresses leading tabs but *not* spaces. :)
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+ cat >&2 <<-'EOE'
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+ Error: Database is uninitialized and superuser password is not specified.
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+ You must specify POSTGRES_PASSWORD to a non-empty value for the
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+ superuser. For example, "-e POSTGRES_PASSWORD=password" on "docker run".
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+
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+ You may also use "POSTGRES_HOST_AUTH_METHOD=trust" to allow all
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+ connections without a password. This is *not* recommended.
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+
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+ See PostgreSQL documentation about "trust":
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+ https://www.postgresql.org/docs/current/auth-trust.html
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+ EOE
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+ exit 1
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+ fi
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+ if [ 'trust' = "$POSTGRES_HOST_AUTH_METHOD" ]; then
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+ cat >&2 <<-'EOWARN'
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+ ********************************************************************************
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+ WARNING: POSTGRES_HOST_AUTH_METHOD has been set to "trust". This will allow
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+ anyone with access to the Postgres port to access your database without
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+ a password, even if POSTGRES_PASSWORD is set. See PostgreSQL
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+ documentation about "trust":
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+ https://www.postgresql.org/docs/current/auth-trust.html
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+ In Docker's default configuration, this is effectively any other
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+ container on the same system.
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+
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+ It is not recommended to use POSTGRES_HOST_AUTH_METHOD=trust. Replace
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+ it with "-e POSTGRES_PASSWORD=password" instead to set a password in
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+ "docker run".
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+ ********************************************************************************
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+ EOWARN
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+ fi
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+ }
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+
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+ # usage: docker_process_init_files [file [file [...]]]
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+ # ie: docker_process_init_files /always-initdb.d/*
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+ # process initializer files, based on file extensions and permissions
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+ docker_process_init_files() {
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+ # psql here for backwards compatiblilty "${psql[@]}"
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+ psql=( docker_process_sql )
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+
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+ echo
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+ local f
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+ for f; do
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+ case "$f" in
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+ *.sh)
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+ # https://github.com/docker-library/postgres/issues/450#issuecomment-393167936
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+ # https://github.com/docker-library/postgres/pull/452
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+ if [ -x "$f" ]; then
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+ echo "$0: running $f"
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+ "$f"
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+ else
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+ echo "$0: sourcing $f"
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+ . "$f"
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+ fi
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+ ;;
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+ *.sql) echo "$0: running $f"; docker_process_sql -f "$f"; echo ;;
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+ *.sql.gz) echo "$0: running $f"; gunzip -c "$f" | docker_process_sql; echo ;;
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+ *.sql.xz) echo "$0: running $f"; xzcat "$f" | docker_process_sql; echo ;;
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+ *) echo "$0: ignoring $f" ;;
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+ esac
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+ echo
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+ done
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+ }
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+
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+ # Execute sql script, passed via stdin (or -f flag of pqsl)
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+ # usage: docker_process_sql [psql-cli-args]
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+ # ie: docker_process_sql --dbname=mydb <<<'INSERT ...'
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+ # ie: docker_process_sql -f my-file.sql
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+ # ie: docker_process_sql <my-file.sql
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+ docker_process_sql() {
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+ local query_runner=( psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --no-password )
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+ if [ -n "$POSTGRES_DB" ]; then
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+ query_runner+=( --dbname "$POSTGRES_DB" )
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+ fi
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+
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+ "${query_runner[@]}" "$@"
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+ }
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+
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+ # create initial database
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+ # uses environment variables for input: POSTGRES_DB
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+ docker_setup_db() {
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+ if [ "$POSTGRES_DB" != 'postgres' ]; then
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+ POSTGRES_DB= docker_process_sql --dbname postgres --set db="$POSTGRES_DB" <<-'EOSQL'
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+ CREATE DATABASE :"db" ;
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+ EOSQL
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+ echo
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+ fi
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+ }
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+
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+ # Loads various settings that are used elsewhere in the script
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+ # This should be called before any other functions
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+ docker_setup_env() {
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+ file_env 'POSTGRES_PASSWORD'
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+
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+ file_env 'POSTGRES_USER' 'postgres'
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+ file_env 'POSTGRES_DB' "$POSTGRES_USER"
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+ file_env 'POSTGRES_INITDB_ARGS'
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+ # default authentication method is md5
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+ : "${POSTGRES_HOST_AUTH_METHOD:=md5}"
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+
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+ declare -g DATABASE_ALREADY_EXISTS
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+ # look specifically for PG_VERSION, as it is expected in the DB dir
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+ if [ -s "$PGDATA/PG_VERSION" ]; then
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+ DATABASE_ALREADY_EXISTS='true'
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+ fi
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+ }
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+
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+ # append POSTGRES_HOST_AUTH_METHOD to pg_hba.conf for "host" connections
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+ pg_setup_hba_conf() {
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+ {
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+ echo
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+ if [ 'trust' = "$POSTGRES_HOST_AUTH_METHOD" ]; then
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+ echo '# warning trust is enabled for all connections'
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+ echo '# see https://www.postgresql.org/docs/12/auth-trust.html'
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+ fi
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+ echo "host all all all $POSTGRES_HOST_AUTH_METHOD"
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+ } >> "$PGDATA/pg_hba.conf"
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+ }
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+
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+ # start socket-only postgresql server for setting up or running scripts
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+ # all arguments will be passed along as arguments to `postgres` (via pg_ctl)
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+ docker_temp_server_start() {
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+ if [ "$1" = 'postgres' ]; then
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+ shift
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+ fi
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+
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+ # internal start of server in order to allow setup using psql client
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+ # does not listen on external TCP/IP and waits until start finishes
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+ set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
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+
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+ PGUSER="${PGUSER:-$POSTGRES_USER}" \
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+ pg_ctl -D "$PGDATA" \
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+ -o "$(printf '%q ' "$@")" \
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+ -w start
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+ }
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+
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+ # stop postgresql server after done setting up user and running scripts
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+ docker_temp_server_stop() {
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+ PGUSER="${PGUSER:-postgres}" \
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+ pg_ctl -D "$PGDATA" -m fast -w stop
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+ }
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+
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+ # check arguments for an option that would cause postgres to stop
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+ # return true if there is one
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+ _pg_want_help() {
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+ local arg
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+ for arg; do
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+ case "$arg" in
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+ # postgres --help | grep 'then exit'
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+ # leaving out -C on purpose since it always fails and is unhelpful:
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+ # postgres: could not access the server configuration file "/var/lib/postgresql/data/postgresql.conf": No such file or directory
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+ -'?'|--help|--describe-config|-V|--version)
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+ return 0
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+ ;;
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+ esac
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+ done
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+ return 1
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+ }
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+
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+ _main() {
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+ # if first arg looks like a flag, assume we want to run postgres server
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+ if [ "${1:0:1}" = '-' ]; then
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+ set -- postgres "$@"
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+ fi
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+
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+ if [ "$1" = 'postgres' ] && ! _pg_want_help "$@"; then
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+ docker_setup_env
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+ # setup data directories and permissions (when run as root)
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+ docker_create_db_directories
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+ if [ "$(id -u)" = '0' ]; then
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+ # then restart script as postgres user
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+ exec gosu postgres "$BASH_SOURCE" "$@"
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+ fi
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+
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+ # only run initialization on an empty data directory
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+ if [ -z "$DATABASE_ALREADY_EXISTS" ]; then
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+ docker_verify_minimum_env
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+
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+ # check dir permissions to reduce likelihood of half-initialized database
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+ ls /docker-entrypoint-initdb.d/ > /dev/null
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+
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+ docker_init_database_dir
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+ pg_setup_hba_conf
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+
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+ # PGPASSWORD is required for psql when authentication is required for 'local' connections via pg_hba.conf and is otherwise harmless
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+ # e.g. when '--auth=md5' or '--auth-local=md5' is used in POSTGRES_INITDB_ARGS
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+ export PGPASSWORD="${PGPASSWORD:-$POSTGRES_PASSWORD}"
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+ docker_temp_server_start "$@"
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+
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+ docker_setup_db
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+ docker_process_init_files /docker-entrypoint-initdb.d/*
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+
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+ docker_temp_server_stop
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+ unset PGPASSWORD
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+
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+ echo
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+ echo 'PostgreSQL init process complete; ready for start up.'
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+ echo
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+ else
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+ echo
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+ echo 'PostgreSQL Database directory appears to contain a database; Skipping initialization'
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+ echo
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+ fi
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+ fi
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+
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+ exec "$@"
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+ }
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+
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+ if ! _is_sourced; then
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+ _main "$@"
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+ fi
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+
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+</details>
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+
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+<details>
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+<summary>Dockerfile 内容</summary>
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+
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+ # FROM debian:buster-slim AS BASE1
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+
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+
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+
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+
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+
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+ FROM buildpack-deps:buster
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+
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+ # ensure local python is preferred over distribution python
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+ ENV PATH /usr/local/bin:$PATH
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+
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|
|
+ # http://bugs.python.org/issue19846
|
|
|
+ # > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
|
|
|
+ ENV LANG C.UTF-8
|
|
|
+
|
|
|
+ # extra dependencies (over what buildpack-deps already includes)
|
|
|
+ RUN apt-get update && apt-get install -y --no-install-recommends \
|
|
|
+ libbluetooth-dev \
|
|
|
+ tk-dev \
|
|
|
+ uuid-dev \
|
|
|
+ && rm -rf /var/lib/apt/lists/*
|
|
|
+
|
|
|
+ ENV GPG_KEY 0D96DF4D4110E5C43FBFB17F2D347EA6AA65421D
|
|
|
+ ENV PYTHON_VERSION 3.7.7
|
|
|
+
|
|
|
+ RUN set -ex \
|
|
|
+ \
|
|
|
+ && wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
|
|
|
+ && wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
|
|
|
+ && export GNUPGHOME="$(mktemp -d)" \
|
|
|
+ && gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
|
|
|
+ && gpg --batch --verify python.tar.xz.asc python.tar.xz \
|
|
|
+ && { command -v gpgconf > /dev/null && gpgconf --kill all || :; } \
|
|
|
+ && rm -rf "$GNUPGHOME" python.tar.xz.asc \
|
|
|
+ && mkdir -p /usr/src/python \
|
|
|
+ && tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
|
|
|
+ && rm python.tar.xz \
|
|
|
+ \
|
|
|
+ && cd /usr/src/python \
|
|
|
+ && gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
|
|
|
+ && ./configure \
|
|
|
+ --build="$gnuArch" \
|
|
|
+ --enable-loadable-sqlite-extensions \
|
|
|
+ --enable-optimizations \
|
|
|
+ --enable-option-checking=fatal \
|
|
|
+ --enable-shared \
|
|
|
+ --with-system-expat \
|
|
|
+ --with-system-ffi \
|
|
|
+ --without-ensurepip \
|
|
|
+ && make -j "$(nproc)" \
|
|
|
+ # setting PROFILE_TASK makes "--enable-optimizations" reasonable: https://bugs.python.org/issue36044 / https://github.com/docker-library/python/issues/160#issuecomment-509426916
|
|
|
+ PROFILE_TASK='-m test.regrtest --pgo \
|
|
|
+ test_array \
|
|
|
+ test_base64 \
|
|
|
+ test_binascii \
|
|
|
+ test_binhex \
|
|
|
+ test_binop \
|
|
|
+ test_bytes \
|
|
|
+ test_c_locale_coercion \
|
|
|
+ test_class \
|
|
|
+ test_cmath \
|
|
|
+ test_codecs \
|
|
|
+ test_compile \
|
|
|
+ test_complex \
|
|
|
+ test_csv \
|
|
|
+ test_decimal \
|
|
|
+ test_dict \
|
|
|
+ test_float \
|
|
|
+ test_fstring \
|
|
|
+ test_hashlib \
|
|
|
+ test_io \
|
|
|
+ test_iter \
|
|
|
+ test_json \
|
|
|
+ test_long \
|
|
|
+ test_math \
|
|
|
+ test_memoryview \
|
|
|
+ test_pickle \
|
|
|
+ test_re \
|
|
|
+ test_set \
|
|
|
+ test_slice \
|
|
|
+ test_struct \
|
|
|
+ test_threading \
|
|
|
+ test_time \
|
|
|
+ test_traceback \
|
|
|
+ test_unicode \
|
|
|
+ ' \
|
|
|
+ && make install \
|
|
|
+ && ldconfig \
|
|
|
+ \
|
|
|
+ && find /usr/local -depth \
|
|
|
+ \( \
|
|
|
+ \( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
|
|
|
+ -o \
|
|
|
+ \( -type f -a \( -name '*.pyc' -o -name '*.pyo' \) \) \
|
|
|
+ \) -exec rm -rf '{}' + \
|
|
|
+ && rm -rf /usr/src/python \
|
|
|
+ \
|
|
|
+ && python3 --version
|
|
|
+
|
|
|
+ # make some useful symlinks that are expected to exist
|
|
|
+ RUN cd /usr/local/bin \
|
|
|
+ && ln -s idle3 idle \
|
|
|
+ && ln -s pydoc3 pydoc \
|
|
|
+ && ln -s python3 python \
|
|
|
+ && ln -s python3-config python-config
|
|
|
+
|
|
|
+ # if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
|
|
|
+ ENV PYTHON_PIP_VERSION 20.1.1
|
|
|
+ # https://github.com/pypa/get-pip
|
|
|
+ ENV PYTHON_GET_PIP_URL https://github.com/pypa/get-pip/raw/eff16c878c7fd6b688b9b4c4267695cf1a0bf01b/get-pip.py
|
|
|
+ ENV PYTHON_GET_PIP_SHA256 b3153ec0cf7b7bbf9556932aa37e4981c35dc2a2c501d70d91d2795aa532be79
|
|
|
+
|
|
|
+ RUN set -ex; \
|
|
|
+ \
|
|
|
+ wget -O get-pip.py "$PYTHON_GET_PIP_URL"; \
|
|
|
+ echo "$PYTHON_GET_PIP_SHA256 *get-pip.py" | sha256sum --check --strict -; \
|
|
|
+ \
|
|
|
+ python get-pip.py \
|
|
|
+ --disable-pip-version-check \
|
|
|
+ --no-cache-dir \
|
|
|
+ "pip==$PYTHON_PIP_VERSION" \
|
|
|
+ ; \
|
|
|
+ pip --version; \
|
|
|
+ \
|
|
|
+ find /usr/local -depth \
|
|
|
+ \( \
|
|
|
+ \( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
|
|
|
+ -o \
|
|
|
+ \( -type f -a \( -name '*.pyc' -o -name '*.pyo' \) \) \
|
|
|
+ \) -exec rm -rf '{}' +; \
|
|
|
+ rm -f get-pip.py
|
|
|
+
|
|
|
+ # CMD ["python3"]
|
|
|
+
|
|
|
+
|
|
|
+ # FROM debian:buster-slim
|
|
|
+
|
|
|
+ RUN set -ex; \
|
|
|
+ if ! command -v gpg > /dev/null; then \
|
|
|
+ apt-get update; \
|
|
|
+ apt-get install -y --no-install-recommends \
|
|
|
+ gnupg \
|
|
|
+ dirmngr \
|
|
|
+ ; \
|
|
|
+ rm -rf /var/lib/apt/lists/*; \
|
|
|
+ fi
|
|
|
+
|
|
|
+ # explicitly set user/group IDs
|
|
|
+ RUN set -eux; \
|
|
|
+ groupadd -r postgres --gid=999; \
|
|
|
+ # https://salsa.debian.org/postgresql/postgresql-common/blob/997d842ee744687d99a2b2d95c1083a2615c79e8/debian/postgresql-common.postinst#L32-35
|
|
|
+ useradd -r -g postgres --uid=999 --home-dir=/var/lib/postgresql --shell=/bin/bash postgres; \
|
|
|
+ # also create the postgres user's home directory with appropriate permissions
|
|
|
+ # see https://github.com/docker-library/postgres/issues/274
|
|
|
+ mkdir -p /var/lib/postgresql; \
|
|
|
+ chown -R postgres:postgres /var/lib/postgresql
|
|
|
+
|
|
|
+ # grab gosu for easy step-down from root
|
|
|
+ # https://github.com/tianon/gosu/releases
|
|
|
+ ENV GOSU_VERSION 1.12
|
|
|
+ RUN set -eux; \
|
|
|
+ savedAptMark="$(apt-mark showmanual)"; \
|
|
|
+ apt-get update; \
|
|
|
+ apt-get install -y --no-install-recommends ca-certificates wget; \
|
|
|
+ rm -rf /var/lib/apt/lists/*; \
|
|
|
+ dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \
|
|
|
+ wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch"; \
|
|
|
+ wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; \
|
|
|
+ export GNUPGHOME="$(mktemp -d)"; \
|
|
|
+ gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
|
|
|
+ gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
|
|
|
+ gpgconf --kill all; \
|
|
|
+ rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
|
|
|
+ apt-mark auto '.*' > /dev/null; \
|
|
|
+ [ -z "$savedAptMark" ] || apt-mark manual $savedAptMark > /dev/null; \
|
|
|
+ apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
|
|
|
+ chmod +x /usr/local/bin/gosu; \
|
|
|
+ gosu --version; \
|
|
|
+ gosu nobody true
|
|
|
+
|
|
|
+ # make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
|
|
|
+ RUN set -eux; \
|
|
|
+ if [ -f /etc/dpkg/dpkg.cfg.d/docker ]; then \
|
|
|
+ # if this file exists, we're likely in "debian:xxx-slim", and locales are thus being excluded so we need to remove that exclusion (since we need locales)
|
|
|
+ grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker; \
|
|
|
+ sed -ri '/\/usr\/share\/locale/d' /etc/dpkg/dpkg.cfg.d/docker; \
|
|
|
+ ! grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker; \
|
|
|
+ fi; \
|
|
|
+ apt-get update; apt-get install -y --no-install-recommends locales; rm -rf /var/lib/apt/lists/*; \
|
|
|
+ localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
|
|
|
+ ENV LANG en_US.utf8
|
|
|
+
|
|
|
+ RUN set -eux; \
|
|
|
+ apt-get update; \
|
|
|
+ apt-get install -y --no-install-recommends \
|
|
|
+ # install "nss_wrapper" in case we need to fake "/etc/passwd" and "/etc/group" (especially for OpenShift)
|
|
|
+ # https://github.com/docker-library/postgres/issues/359
|
|
|
+ # https://cwrap.org/nss_wrapper.html
|
|
|
+ libnss-wrapper \
|
|
|
+ # install "xz-utils" for .sql.xz docker-entrypoint-initdb.d files
|
|
|
+ xz-utils \
|
|
|
+ ; \
|
|
|
+ rm -rf /var/lib/apt/lists/*
|
|
|
+
|
|
|
+ RUN mkdir /docker-entrypoint-initdb.d
|
|
|
+
|
|
|
+ RUN set -ex; \
|
|
|
+ # pub 4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
|
|
|
+ # Key fingerprint = B97B 0AFC AA1A 47F0 44F2 44A0 7FCC 7D46 ACCC 4CF8
|
|
|
+ # uid PostgreSQL Debian Repository
|
|
|
+ key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
|
|
|
+ export GNUPGHOME="$(mktemp -d)"; \
|
|
|
+ gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
|
|
|
+ gpg --batch --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
|
|
|
+ command -v gpgconf > /dev/null && gpgconf --kill all; \
|
|
|
+ rm -rf "$GNUPGHOME"; \
|
|
|
+ apt-key list
|
|
|
+
|
|
|
+ ENV PG_MAJOR 12
|
|
|
+ ENV PG_VERSION 12.3-1.pgdg100+1
|
|
|
+
|
|
|
+ RUN set -ex; \
|
|
|
+ \
|
|
|
+ # see note below about "*.pyc" files
|
|
|
+ export PYTHONDONTWRITEBYTECODE=1; \
|
|
|
+ \
|
|
|
+ dpkgArch="$(dpkg --print-architecture)"; \
|
|
|
+ case "$dpkgArch" in \
|
|
|
+ amd64 | arm64 | i386 | ppc64el) \
|
|
|
+ # arches officialy built by upstream
|
|
|
+ echo "deb http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main $PG_MAJOR" > /etc/apt/sources.list.d/pgdg.list; \
|
|
|
+ apt-get update; \
|
|
|
+ ;; \
|
|
|
+ *) \
|
|
|
+ # we're on an architecture upstream doesn't officially build for
|
|
|
+ # let's build binaries from their published source packages
|
|
|
+ echo "deb-src http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main $PG_MAJOR" > /etc/apt/sources.list.d/pgdg.list; \
|
|
|
+ \
|
|
|
+ case "$PG_MAJOR" in \
|
|
|
+ 9.* | 10 ) ;; \
|
|
|
+ *) \
|
|
|
+ # https://github.com/docker-library/postgres/issues/484 (clang-6.0 required, only available in stretch-backports)
|
|
|
+ # TODO remove this once we hit buster+
|
|
|
+ echo 'deb http://deb.debian.org/debian buster-backports main' >> /etc/apt/sources.list.d/pgdg.list; \
|
|
|
+ ;; \
|
|
|
+ esac; \
|
|
|
+ \
|
|
|
+ tempDir="$(mktemp -d)"; \
|
|
|
+ cd "$tempDir"; \
|
|
|
+ \
|
|
|
+ savedAptMark="$(apt-mark showmanual)"; \
|
|
|
+ \
|
|
|
+ # build .deb files from upstream's source packages (which are verified by apt-get)
|
|
|
+ apt-get update; \
|
|
|
+ apt-get build-dep -y \
|
|
|
+ postgresql-common pgdg-keyring \
|
|
|
+ "postgresql-$PG_MAJOR=$PG_VERSION" \
|
|
|
+ ; \
|
|
|
+ DEB_BUILD_OPTIONS="nocheck parallel=$(nproc)" \
|
|
|
+ apt-get source --compile \
|
|
|
+ postgresql-common pgdg-keyring \
|
|
|
+ "postgresql-$PG_MAJOR=$PG_VERSION" \
|
|
|
+ ; \
|
|
|
+ # we don't remove APT lists here because they get re-downloaded and removed later
|
|
|
+ \
|
|
|
+ # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
|
|
|
+ # (which is done after we install the built packages so we don't have to redownload any overlapping dependencies)
|
|
|
+ apt-mark showmanual | xargs apt-mark auto > /dev/null; \
|
|
|
+ apt-mark manual $savedAptMark; \
|
|
|
+ \
|
|
|
+ # create a temporary local APT repo to install from (so that dependency resolution can be handled by APT, as it should be)
|
|
|
+ ls -lAFh; \
|
|
|
+ dpkg-scanpackages . > Packages; \
|
|
|
+ grep '^Package: ' Packages; \
|
|
|
+ echo "deb [ trusted=yes ] file://$tempDir ./" > /etc/apt/sources.list.d/temp.list; \
|
|
|
+ # work around the following APT issue by using "Acquire::GzipIndexes=false" (overriding "/etc/apt/apt.conf.d/docker-gzip-indexes")
|
|
|
+ # Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
|
|
|
+ # ...
|
|
|
+ # E: Failed to fetch store:/var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
|
|
|
+ apt-get -o Acquire::GzipIndexes=false update; \
|
|
|
+ ;; \
|
|
|
+ esac; \
|
|
|
+ \
|
|
|
+ apt-get install -y --no-install-recommends postgresql-common; \
|
|
|
+ sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf; \
|
|
|
+ apt-get install -y --no-install-recommends \
|
|
|
+ "postgresql-$PG_MAJOR=$PG_VERSION" \
|
|
|
+ ; \
|
|
|
+ \
|
|
|
+ rm -rf /var/lib/apt/lists/*; \
|
|
|
+ \
|
|
|
+ if [ -n "$tempDir" ]; then \
|
|
|
+ # if we have leftovers from building, let's purge them (including extra, unnecessary build deps)
|
|
|
+ apt-get purge -y --auto-remove; \
|
|
|
+ rm -rf "$tempDir" /etc/apt/sources.list.d/temp.list; \
|
|
|
+ fi; \
|
|
|
+ \
|
|
|
+ # some of the steps above generate a lot of "*.pyc" files (and setting "PYTHONDONTWRITEBYTECODE" beforehand doesn't propagate properly for some reason), so we clean them up manually (as long as they aren't owned by a package)
|
|
|
+ find /usr -name '*.pyc' -type f -exec bash -c 'for pyc; do dpkg -S "$pyc" &> /dev/null || rm -vf "$pyc"; done' -- '{}' +
|
|
|
+
|
|
|
+ # make the sample config easier to munge (and "correct by default")
|
|
|
+ RUN set -eux; \
|
|
|
+ dpkg-divert --add --rename --divert "/usr/share/postgresql/postgresql.conf.sample.dpkg" "/usr/share/postgresql/$PG_MAJOR/postgresql.conf.sample"; \
|
|
|
+ cp -v /usr/share/postgresql/postgresql.conf.sample.dpkg /usr/share/postgresql/postgresql.conf.sample; \
|
|
|
+ ln -sv ../postgresql.conf.sample "/usr/share/postgresql/$PG_MAJOR/"; \
|
|
|
+ sed -ri "s!^#?(listen_addresses)\s*=\s*\S+.*!\1 = '*'!" /usr/share/postgresql/postgresql.conf.sample; \
|
|
|
+ grep -F "listen_addresses = '*'" /usr/share/postgresql/postgresql.conf.sample
|
|
|
+
|
|
|
+ RUN mkdir -p /var/run/postgresql && chown -R postgres:postgres /var/run/postgresql && chmod 2777 /var/run/postgresql
|
|
|
+
|
|
|
+ ENV PATH $PATH:/usr/lib/postgresql/$PG_MAJOR/bin
|
|
|
+ ENV PGDATA /var/lib/postgresql/data
|
|
|
+ # this 777 will be replaced by 700 at runtime (allows semi-arbitrary "--user" values)
|
|
|
+ RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA"
|
|
|
+ VOLUME /var/lib/postgresql/data
|
|
|
+
|
|
|
+ COPY docker-entrypoint.sh /usr/local/bin/
|
|
|
+ RUN ln -s usr/local/bin/docker-entrypoint.sh / # backwards compat
|
|
|
+ ENTRYPOINT ["docker-entrypoint.sh"]
|
|
|
+
|
|
|
+ RUN apt-get update && apt-get install -y "postgresql-plpython3-12"
|
|
|
+
|
|
|
+ # RUN echo 'CREATE EXTENSION plpythonu;' > /docker-entrypoint-initdb.d/plpythonu.sql
|
|
|
+
|
|
|
+ EXPOSE 5432
|
|
|
+ CMD ["postgres"]
|
|
|
+
|
|
|
+</details>
|
|
|
+
|
|
|
+ 3. 文件内容说明
|
|
|
+ 1). docker-entrypoint.sh 是postgresql数据库的配置文件, 会拷贝到镜像内部使用
|
|
|
+ 2). Dockerfile是docker用来构建镜像的文件, 分为三部分 分别是 安装python3, 安装postgresql数据库, 安装plpython3插件
|
|
|
+ 以上是镜像文件构建的准备工作
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+
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+## 构建镜像
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+
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+ 1. 在dockerTemp临时工作目录内构建镜像
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+ docker build -t mypg:2 .
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+ 其中-t是给镜像起个名字, mypg是名字, 2是版本号, 最后还有一个.表示基于当前目录进行构建镜像, 如果初次执行, 该命令耗时较长
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+
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+## 运行镜像, 开启服务
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+
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+ 1. 查看镜像
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+ docker images
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+
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+
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+ 2. 运行
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+ mkdir -p /var/lib/postgresql/data
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+ docker run -d -e POSTGRES_PASSWORD=123456 --name pg12 -v /var/lib/postgresql/data:/var/lib/postgresql/data -p 5432:5432 mypg:1 postgres
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+
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+ -d表示后台执行
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+ -e表示设置环境变量(此处未pg数据库密码)
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+ --name是给容器起一个名字pg12
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+ -p 表示端口映射(本机端口:容器端口)
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+ -v 表示文件夹映射(本机目录:容器目录) 此处表示postgresql的数据文件存放目录放在本机中, 即便换了容器, 数据也是不变
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+ postgres 表示开启容器后执行的命令(postgres表示开启postgresql数据库)
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+ 3. 检测
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+ docker ps (查看当前运行中的容器 -a是查看所有)
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+ 如下图所示, 服务已经开启, 可以测试连接数据库
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+
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+
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+## 查看pg数据库数据文件的映射(volumes 映射)
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+
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+ volumes文件映射的功能是让容器和本机的文件夹数据共享的机制
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+ docker inspect pg12 | grep Mounts -A 20
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+
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+
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+
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+## 其他常用命令
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+
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+ 1. 查看所有容器
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+ docker ps -a
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+ 2. 查看所有镜像
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+ docker images
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+ 3. 关闭容器, 开启容器
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+ docker start pg12
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+ docker stop pg12
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+ 4. 删除容器
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+ docker rm pg12 (需要先关闭容器)
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+ docker rm -f pg12 (强制删除)
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+ 5. 删除镜像
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+ docker rmi [镜像id]
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+ 6. 进入容器
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+ docker exec -it pg12 /bin/bash
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+ (帮助: docker exec --help)
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+ 7. 退出容器
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+ ctrl + P + Q
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