FROM wordpress:5.9
# M1/M2 などの armアーキテクチャ MacBook で動かす場合は以下(要Rosetta)
# FROM --platform=linux/amd64 wordpress:5.9

ENV WP_CLI_VERSION 2.7.1

COPY install-wordpress.sh /usr/local/bin/

RUN \
  cd /tmp ;\
  # Install WP-CLI
  curl -L -sS -o wp-cli.phar https://github.com/wp-cli/wp-cli/releases/download/v${WP_CLI_VERSION}/wp-cli-${WP_CLI_VERSION}.phar &&\
  chmod +x wp-cli.phar &&\
  mv wp-cli.phar /usr/local/bin/wp ;\
  # isntall WordPress script to execute Cronjob using wp-cli
  chmod +x /usr/local/bin/install-wordpress.sh ;\

if [ ! -e index.php ] && [ ! -e wp-includes/version.php ]; then
  # if the directory exists and WordPress doesn't appear to be installed AND the permissions of it are root:root, let's chown it (likely a Docker-created directory)
  if [ "$uid" = '0' ] && [ "$(stat -c '%u:%g' .)" = '0:0' ]; then
    chown "$user:$group" .
  fi

  echo >&2 "WordPress not found in $PWD - copying now..."
  if [ -n "$(find -mindepth 1 -maxdepth 1 -not -name wp-content)" ]; then
    echo >&2 "WARNING: $PWD is not empty! (copying anyhow)"
  fi
  sourceTarArgs=(
    --create
    --file -
    --directory /usr/src/wordpress
    --owner "$user" --group "$group"
  )
  targetTarArgs=(
    --extract
    --file -
  )
  if [ "$uid" != '0' ]; then
    # avoid "tar: .: Cannot utime: Operation not permitted" and "tar: .: Cannot change mode to rwxr-xr-x: Operation not permitted"
    targetTarArgs+=( --no-overwrite-dir )
  fi
  # loop over "pluggable" content in the source, and if it already exists in the destination, skip it
  # https://github.com/docker-library/wordpress/issues/506 ("wp-content" persisted, "akismet" updated, WordPress container restarted/recreated, "akismet" downgraded)
  for contentPath in \
    /usr/src/wordpress/.htaccess \
    /usr/src/wordpress/wp-content/*/*/ \
  ; do
    contentPath="${contentPath%/}"
    [ -e "$contentPath" ] || continue
    contentPath="${contentPath#/usr/src/wordpress/}" # "wp-content/plugins/akismet", etc.
    if [ -e "$PWD/$contentPath" ]; then
      echo >&2 "WARNING: '$PWD/$contentPath' exists! (not copying the WordPress version)"
      sourceTarArgs+=( --exclude "./$contentPath" )
    fi
  done
  tar "${sourceTarArgs[@]}" . | tar "${targetTarArgs[@]}"
  echo >&2 "Complete! WordPress has been successfully copied to $PWD"
fi

wpEnvs=( "${!WORDPRESS_@}" )
if [ ! -s wp-config.php ] && [ "${#wpEnvs[@]}" -gt 0 ]; then
  for wpConfigDocker in \
    wp-config-docker.php \
    /usr/src/wordpress/wp-config-docker.php \
  ; do
    if [ -s "$wpConfigDocker" ]; then
      echo >&2 "No 'wp-config.php' found in $PWD, but 'WORDPRESS_...' variables supplied; copying '$wpConfigDocker' (${wpEnvs[*]})"
      # using "awk" to replace all instances of "put your unique phrase here" with a properly unique string (for AUTH_KEY and friends to have safe defaults if they aren't specified with environment variables)
      awk '
        /put your unique phrase here/ {
          cmd = "head -c1m /dev/urandom | sha1sum | cut -d\\  -f1"
          cmd | getline str
          close(cmd)
          gsub("put your unique phrase here", str)
        }
        { print }
      ' "$wpConfigDocker" > wp-config.php
      if [ "$uid" = '0' ]; then
        # attempt to ensure that wp-config.php is owned by the run user
        # could be on a filesystem that doesn't allow chown (like some NFS setups)
        chown "$user:$group" wp-config.php || true
      fi
      break
    fi
  done
fi

apiVersion: batch/v1
kind: CronJob
metadata:
  name: job-wordpress-cron
  namespace: wordpress
spec:
  schedule: "30/* * * * *"
  concurrencyPolicy: Forbid
  jobTemplate:
    spec:
      template:
        spec:
          restartPolicy: Never

          containers:
            # CONTAINER: 1
            - name: wp-cron
              # ビルドした Docker Image を指定
              image: your-docker-registry/wordpress-5-9:latest
              ports:
                - name: http-port
                  containerPort: 80
              command: ["/bin/bash", "-c"]
              args:
                - |
                  install-wordpress.sh
                  echo "[Info] Copy the plugin under wp-contnet ..."
                  echo "Plugin が必要な場合はここで配置するスクリプトを記載してもよい"
                  echo "[Info] Show event list ..."
                  wp cron event list --url=example.com --allow-root
                  echo "[Info] Execute WP-Cron using WP-CLI ..."
                  wp cron event run --due-now --url=example.com --allow-root
                  echo "[Info] WP-Cron finished. Terminate the job process ..."                  
              env:
                - name: WORDPRESS_DB_HOST
                  value: "127.0.0.1"

Executed the cron event 'wp_program_a_hook' in 16.126s.
Executed the cron event 'wp_program_a_hook' in 31.962s.
Executed the cron event 'wp_program_a_hook' in 26.384s.
Executed the cron event 'wp_program_a_hook' in 19.223s.
Executed the cron event 'wp_program_a_hook' in 55.699s.
Executed the cron event 'wp_program_a_hook' in 19.225s.
Executed the cron event 'wp_program_a_hook' in 56.49s.
...
Executed the cron event 'wp_update_plugins' in 0.18s.
Executed the cron event 'wp_update_themes' in 0.017s.
Success: Executed a total of 32 cron events.
[Info] WP-Cron finished. Terminate the job

# CronJob リソース
spec:
  schedule: "15 * * * *"
  concurrencyPolicy: Forbid
  jobTemplate:
    spec:
      template:
        spec:
          shareProcessNamespace: true
          restartPolicy: Never
          containers:
            # ...

# WordPress (WP-CLI) 実行コンテナのスクリプト
args:
  - |
    install-wordpress.sh
    echo "[Info] Copy the plugin under wp-contnet ..."
    echo "[Info] Show event list ..."
    wp cron event list --url=ragmity.com --allow-root
    echo "[Info] Execute WP-Cron using WP-CLI ..."
    wp cron event run --due-now --url=ragmity.com --allow-root
    echo "[Info] WP-Cron finished. Terminate the job process ..."
    pkill cloud_sql_proxy