new: [wordpress] new charm

wordpress/hooks/init

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+#!/bin/bash
+
+## Init is run on host
+## For now it is run every time the script is launched, but
+## it should be launched only once after build.
+
+## Accessible variables are:
+## - SERVICE_NAME        Name of current service
+## - DOCKER_BASE_IMAGE   Base image from which this service might be built if any
+## - SERVICE_DATASTORE           Location on host of the DATASTORE of this service
+## - SERVICE_CONFIGSTORE         Location on host of the CONFIGSTORE of this service
+
+set -e
+
+. lib/common
+
+
+wordpress:init

wordpress/hooks/mysql_database-relation-joined

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+#!/bin/bash
+
+. lib/common
+
+PASSWORD="$(relation-get password)"
+USER="$(relation-get user)"
+DBNAME="$(relation-get dbname)"
+
+control=$(H "$USER" "$DBNAME" "$PASSWORD")
+
+[ "$control" == "$(relation-get control || true)" ] && exit 0
+
+set -e
+
+wp-cli:run config create \
+           --dbname="$DBNAME" \
+           --dbuser="$USER" \
+           --dbpass="$PASSWORD" \
+           --dbhost="$TARGET_SERVICE_NAME" \
+           --skip-check
+
+relation-set control "$control"
+
+info "Configured wordpress code for mysql access."
+
+

wordpress/lib/common

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+# -*- mode: shell-script -*-
+
+WORDPRESS_DIR="/opt/apps/wordpress"
+WORDPRESS_CODE="$SERVICE_DATASTORE$WORDPRESS_DIR"
+# WORDPRESS_RELEASE=6.6.2
+# WORDPRESS_URL=https://github.com/WordPress/WordPress/archive/refs/tags/"${WORDPRESS_RELEASE}".tar.gz
+
+WPCLI_RELEASE=2.11.0
+WPCLI_URL=https://github.com/wp-cli/wp-cli/releases/download/v${WPCLI_RELEASE}/wp-cli-${WPCLI_RELEASE}.phar
+WPCLI_DOCKER_IMAGE="wpcli:$WPCLI_RELEASE"
+
+
+wp-cli:run() {
+    if ! docker_has_image "$WPCLI_DOCKER_IMAGE"; then
+        echo '
+            curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar &&
+            chmod +x wp-cli.phar &&
+            mv wp-cli.phar /usr/local/bin/wp
+        ' | DEBUG=1 dupd -t "$WPCLI_DOCKER_IMAGE" "$DOCKER_BASE_IMAGE" || {
+            err "Couldn't build $WPCLI_DOCKER_IMAGE."
+            return 1
+        }
+        info "Successfully built $WPCLI_DOCKER_IMAGE."
+    fi
+    docker run --rm \
+           -v "$WORDPRESS_CODE:$WORDPRESS_DIR" \
+           -w "$WORDPRESS_DIR" \
+           -u www-data \
+           --entrypoint wp \
+           "$WPCLI_DOCKER_IMAGE" "$@"
+}
+
+
+wordpress:init() {
+    mkdir -p "$WORDPRESS_CODE" || {
+        err "Couldn't create $WORDPRESS_CODE."
+        return 1
+    }
+    dir_is_empty "$WORDPRESS_CODE" || return 0
+    
+    uid=$(docker_get_uid "$SERVICE_NAME" "www-data")
+    chown "$uid" "$WORDPRESS_CODE" || {
+        err "Couldn't change owner of $WORDPRESS_CODE to $uid."
+        return 1
+    }
+
+    cd "$WORDPRESS_CODE" || return 1
+    wp-cli:run core download
+
+}

wordpress/metadata.yml

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+description: Wordpress
+subordinate: true
+requires:
+  web-publishing-directory:
+    interface: publish-dir
+    scope: container
+
+uses:
+  mysql-database:
+    #constraint: required | recommended | optional
+    #auto: pair | summon | none ## default: pair
+    constraint: required
+    auto: summon
+    solves:
+      database: "main storage"
+  publish-dir:
+    #constraint: required | recommended | optional
+    #auto: pair | summon | none ## default: pair
+    scope: container
+    constraint: required
+    auto: summon
+    solves:
+      container: "main running server"
+    default-options:
+      location: !var-expand "$DATASTORE/$BASE_SERVICE_NAME/opt/apps/wordpress"
+      fpm: php
+  backup:
+    constraint: recommended
+    auto: pair
+    solves:
+      backup: "Automatic regular backup"