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

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

deployment/installer/config-deployment/python/liquibase_deploy.py

@@ -0,0 +1,17 @@
+import subprocess
+import sys
+
+
+def deploy_liquibase(folder, change_log_file, liquibase_path, base_path, db_config):
+    print(f'Deploying liquibase of {change_log_file} in folder {folder}')
+    process_command = [f'{liquibase_path}/liquibase', f'--defaultsFile={change_log_file}', f'--defaultSchemaName={db_config.scheme}', f'--liquibaseSchemaName={db_config.scheme}',  f'--liquibaseCatalogName={db_config.scheme}', '--logLevel=info', 'update']
+    process = subprocess.Popen(process_command,
+                     cwd=f'{base_path}/liquibase-zips/{folder}',
+                     stderr=sys.stderr,
+                     stdout=sys.stdout)
+
+    process.communicate()
+    code = process.returncode
+    if code != 0:
+        print("Liquibased deployment failed.")
+        sys.exit(code)

deployment/installer/config-deployment/python/main.py

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+import jinja2
+import json
+import os
+import re
+import liquibase_deploy
+import sys
+from zipfile import ZipFile
+
+
+class DbConfig:
+    def __init__(self):
+        self.host = os.getenv('DB_HOST')
+        self.port = os.getenv('DB_PORT')
+        self.database = os.getenv('DB_NAME')
+        self.user = os.getenv('DB_USER')
+        self.password = os.getenv('DB_PASS')
+        self.scheme = os.getenv('DB_SCHEME')
+
+
+config_dir = sys.argv[1]
+
+db_config = DbConfig()
+postgres_driver_path = os.getenv('POSTGRES_DRIVER', '/postgres/driver.jar')
+liquibase_path = os.getenv('LIQUIBASE_PATH', '/liquibase')
+script_directory = os.path.dirname(os.path.abspath(sys.argv[0]))
+
+print("Loading versions.")
+with open(config_dir + 'artifact_versions.json') as artifact_config_file:
+    artifact_config = json.load(artifact_config_file)
+
+print("Loading templates")
+templateLoader = jinja2.FileSystemLoader(searchpath="/python/templates")
+templateEnv = jinja2.Environment(loader=templateLoader)
+variable_prefix_pattern = re.compile(r'ABSTRACTO_\w+')
+variables = {}
+for key, val in os.environ.items():
+    if variable_prefix_pattern.match(key):
+        variables[key.lower().replace('_', '')] = val
+
+template = templateEnv.get_template("liquibase.properties.j2")
+
+print("Starting liquibase deployment")
+for liquibase_artifact in artifact_config['liquibase_artifacts']:
+    zip_file = liquibase_artifact['zip']
+    target_folder = config_dir + '/liquibase-zips/' + zip_file
+    with ZipFile(config_dir + 'liquibase-zips/' + zip_file + '.zip', 'r') as liquibase_zip:
+        liquibase_zip.extractall(target_folder)
+    change_log_file = liquibase_artifact['file']
+    liquibase_config_text = template.render(change_log_file=change_log_file, db_host=db_config.host, db_port=db_config.port,
+                                            db_database=db_config.database, db_user=db_config.user, db_password=db_config.password,
+                                            postgres_driver_path=postgres_driver_path, variables=variables)
+    property_path = script_directory + '/templates/liquibase.properties'
+    with open(property_path, 'w') as liquibase_target_properties:
+        liquibase_target_properties.write(liquibase_config_text)
+    liquibase_deploy.deploy_liquibase(zip_file, property_path, liquibase_path, config_dir, db_config)

deployment/installer/config-deployment/python/templates/liquibase.properties.j2

@@ -0,0 +1,9 @@
+changeLogFile: {{ change_log_file }}
+driver: org.postgresql.Driver
+url: jdbc:postgresql://{{ db_host }}:{{ db_port }}/{{ db_database }}
+username: {{ db_user }}
+password: {{ db_password }}
+classpath: {{ postgres_driver_path }}
+{% for key, value in variables.items() %}
+parameter.{{ key }}: {{ value }}
+{% endfor %}