[AB-xxx] restructuring installer module to be outside of maven

split liquibase and template deployment
adding various features to the deployment images

deployment/installer/template-deployment/python/templates_deploy.py

@@ -0,0 +1,31 @@
+import glob
+import os
+import sqlalchemy as db
+from sqlalchemy.sql import text
+
+
+def deploy_template_folder(db_config, folder):
+    engine = db.create_engine('postgresql://%s:%s@%s:%s/%s' % (db_config.user, db_config.password, db_config.host, db_config.port, db_config.database))
+
+    if not os.path.isdir(folder):
+        print(f'Given path {folder} was not a folder. Exiting.')
+        exit(1)
+
+    files = glob.glob(folder + '/**/*.ftl', recursive=True)
+    templates = []
+    for file in files:
+        with open(file) as template_file:
+            file_content = template_file.read()
+            template_key = os.path.splitext(os.path.basename(file))[0]
+            template = {'key': template_key, 'content': file_content}
+            print(f'Deployment template {template}')
+            templates.append(template)
+
+    print(f'Deploying {len(templates)} templates from folder {folder}')
+
+    with engine.connect() as con:
+        with con.begin():
+            statement = text(f"""INSERT INTO {db_config.scheme}template(key, content, last_modified) VALUES(:key, :content, NOW()) ON CONFLICT (key) DO UPDATE SET content = :content""")
+
+            for line in templates:
+                con.execute(statement, **line)