More straightforward approach to configure logging for oracle services (#345)

deployment/roles/oracle/files/modify_to_use_syslog.py

@@ -0,0 +1,28 @@
+#!/usr/bin/python3
+
+from yaml import safe_load, safe_dump
+from argparse import ArgumentParser
+from os.path import basename
+import sys
+
+parser = ArgumentParser()
+parser.add_argument('composefile', type=str, nargs=1, metavar='compose-file', help='docker-compose.yml')
+parser.add_argument('-d', action='store_true', help='output result instead of writing the file', dest='debug')
+
+if basename(sys.argv[0]) == "ipykernel_launcher.py":
+    args = parser.parse_args(['docker-compose.yml'])
+else:
+    args = parser.parse_args()
+    
+file_to_operate = args.composefile[0]
+
+with open(file_to_operate) as composefile:
+    composecnt=composefile.read()
+yml = safe_load(composecnt)
+for i in yml['services']:
+    yml['services'][i]['logging'] = {'driver': 'syslog','options': {'tag': '{{.Name}}/{{.ID}}'}}
+if args.debug or (basename(sys.argv[0]) == "ipykernel_launcher.py"):
+    print(safe_dump(yml))
+else:
+    with open(file_to_operate, 'w') as composefile:
+        safe_dump(yml, composefile, explicit_start=True)

deployment/roles/oracle/tasks/logging_by_syslog.yml

@@ -1,19 +1,5 @@
 ---
-- name: Slurp docker compose file
-  slurp:
-    src: "{{ bridge_path }}/oracle/{{ file }}.yml"
-  register: docker_compose_slurp
-
-- name: Parse docker compose file
-  set_fact:
-    docker_compose_parsed: "{{ docker_compose_slurp['content'] | b64decode | from_yaml }}"
-
-- name: Set logger to remote server
-  set_fact:
-    docker_compose_parsed: "{{ docker_compose_parsed |combine({'services': {item: {'logging': {'driver': 'syslog','options': {'tag': '{{.Name}}/{{.ID}}'}}}}}, recursive=True) }}"
-  with_items: "{{ docker_compose_parsed.services }}"
-
-- name: Write updated docker file
-  copy:
-    content: "{{ docker_compose_parsed | to_yaml }}"
-    dest: "{{ bridge_path }}/oracle/{{ file }}.yml"
+- name: Change logging facility to forward logs to syslog
+  script: modify_to_use_syslog.py "{{ bridge_path }}/oracle/{{ file }}.yml"
+  args:
+    executable: python3