Adding tasks, defaults, and templates

Author: sp-lyang

defaults/main.yml

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+celery_install: True
+
+celery_env_dir: /etc/celery.d
+celery_log_dir: /var/log/celery
+celery_run_dir: /var/run/celery
+celery_bin: "{{python_virtualenv}}/bin/celery"

tasks/main.yml

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+---
+- name: Manage Directories
+  include_tasks: manage_paths.yml
+
+- name: Manage Config Files
+  include_tasks: manage_configs.yml
+
+- name: Manage systemd Service Units
+  include_tasks: manage_service_units.yml

tasks/manage_configs.yml

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+---
+- name: Configure Celery EnvironmentFile
+  template: src=celery_env.j2 dest="{{celery_env_dir}}/{{item.name}}"
+  notify: "restart celery service"
+  with_items: "{{celery_services}}"

tasks/manage_paths.yml

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+---
+- name: Ensure Celery Env Dir exists
+  file:
+    path: "{{celery_env_dir}}"
+    state: directory
+    owner: "{{app_user}}"
+    group: "{{app_user}}"
+    mode: 0755
+
+- name: Ensure Celery Log Dir exists
+  file:
+    path: "{{celery_log_dir}}"
+    state: directory
+    owner: "{{app_user}}"
+    group: "{{app_user}}"
+    mode: 0755
+
+- name: Ensure Celery Run Dir exists
+  file:
+    path: "{{celery_run_dir}}"
+    state: directory
+    owner: "{{app_user}}"
+    group: "{{app_user}}"
+    mode: 0755

tasks/manage_units.yml

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+---
+- name: Configure Celery systemd service unit
+  template: src=celery.service.j2 dest="/etc/systemd/system/{{item.name}}.service"
+  notify: restart celery service
+  with_items: "{{celery_services}}"

templates/celery.service.j2

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+[Unit]
+Description=Celery Service
+After=network.target
+
+[Service]
+Type=forking
+User={{celery_user}}
+Group={{celery_user}}
+EnvironmentFile={{celery_env_dir}}/{{item.name}}
+WorkingDirectory={{celery_working_dir}}
+ExecStart=/bin/sh -c '${CELERY_BIN} multi start ${CELERYD_NODES} \
+  -A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} \
+  --logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'
+ExecStop=/bin/sh -c '${CELERY_BIN} multi stopwait ${CELERYD_NODES} \
+  --pidfile=${CELERYD_PID_FILE}'
+ExecReload=/bin/sh -c '${CELERY_BIN} multi restart ${CELERYD_NODES} \
+  -A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} \
+  --logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'
+
+[Install]
+WantedBy=celery.target

templates/celery_env.j2

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+{{ansible_managed}}
+{% for k, v in item.environment.items()|sort %}
+{% if '__omit_place_holder__' not in v|string %}
+{{k}}='{{v}}'
+{% endif %}
+{% endfor %}