[php] Add migration procedure for php7.0 -> php7.3 pool files

src/yunohost/data_migrations/0016_php70_to_php73_pools.py

@@ -0,0 +1,70 @@
+import os
+import glob
+from shutil import copy2
+
+from moulinette.utils.log import getActionLogger
+
+from yunohost.tools import Migration
+from yunohost.service import _run_service_command
+
+logger = getActionLogger('yunohost.migration')
+
+PHP70_POOLS = "/etc/php/7.0/fpm/pool.d"
+PHP73_POOLS = "/etc/php/7.3/fpm/pool.d"
+
+PHP70_SOCKETS_PREFIX = "/run/php/php7.0-fpm"
+PHP73_SOCKETS_PREFIX = "/run/php/php7.3-fpm"
+
+MIGRATION_COMMENT = "; YunoHost note : this file was automatically moved from {}".format(PHP70_POOLS)
+
+
+class MyMigration(Migration):
+
+    "Migrate php7.0-fpm 'pool' conf files to php7.3"
+
+    dependencies = ["migrate_to_buster"]
+
+    def run(self):
+        # Get list of php7.0 pool files
+        php70_pool_files = glob.glob("{}/*.conf".format(PHP70_POOLS))
+
+        # Keep only basenames
+        php70_pool_files = [os.path.basename(f) for f in php70_pool_files]
+
+        # Ignore the "www.conf" (default stuff, probably don't want to touch it ?)
+        php70_pool_files = [f for f in php70_pool_files if f != "www.conf"]
+
+        for f in php70_pool_files:
+
+            # Copy the files to the php7.3 pool
+            src = "{}/{}".format(PHP70_POOLS, f)
+            dest = "{}/{}".format(PHP73_POOLS, f)
+            copy2(src, dest)
+
+            # Replace the socket prefix if it's found
+            c = "sed -i -e 's@{}@{}@g' {}".format(PHP70_SOCKETS_PREFIX, PHP73_SOCKETS_PREFIX, dest)
+            os.system(c)
+
+            # Also add a comment that it was automatically moved from php7.0
+            # (for human traceability and backward migration)
+            c = "sed -i '1i {}' {}".format(MIGRATION_COMMENT, dest)
+            os.system(c)
+
+        # Reload/restart the php pools
+        _run_service_command("restart", "php7.3-fpm")
+        _run_service_command("enable", "php7.3-fpm")
+        os.system("systemctl stop php7.0-fpm")
+        os.system("systemctl disable php7.0-fpm")
+        os.system("rm /etc/logrotate.d/php7.0-fpm")  # We remove this otherwise the logrotate cron will be unhappy
+
+        # Get list of nginx conf file
+        nginx_conf_files = glob.glob("/etc/nginx/conf.d/*.d/*.conf")
+        for f in nginx_conf_files:
+            # Replace the socket prefix if it's found
+            c = "sed -i -e 's@{}@{}@g' {}".format(PHP70_SOCKETS_PREFIX, PHP73_SOCKETS_PREFIX, f)
+            os.system(c)
+            # FIXME : should tweak the checksum setting in settings.yml of the app so that the file ain't considered manually modified
+            # Aslo gotta tweak the settings fpm_service and fpm_config_dir ...
+
+        # Reload nginx
+        _run_service_command("reload", "nginx")