Fixing docker commands, adding health check.

ansible/playbooks/deploy_app.yml

@@ -114,33 +114,41 @@
       git:
         repo: https://github.com/samuelclay/NewsBlur.git
         dest: /srv/newsblur/
-        version: master
+        version: blue-green-deploy
       register: pulled
       tags:
         - static
 
     - name: Run new Docker container with temporary name
       docker_container:
-        name: "newsblur_web_new"
+        name: newsblur_web_new
-        image: "newsblur/newsblur_web:latest"
+        image: newsblur/newsblur_python3
-        pull: true
+        container_default_behavior: no_defaults
+        pull: yes
+        env:
+          DOCKERBUILD: ""
         state: started
-        restart_policy: always
+        command: gunicorn --config /srv/newsblur/config/gunicorn_conf.py newsblur_web.wsgi:application
-        command: "gunicorn newsblur.wsgi:application --bind :8000 --workers 4"
+        env:
-        hostname: "newsblur_web_new"
+          TEMP8001: "true"
+        hostname: "{{ inventory_hostname }}"
+        log_driver: json-file
+        log_options:
+          max-size: 100m
+        networks_cli_compatible: yes
+        network_mode: default
         networks:
-          - name: newsblur-network
+          - name: newsblurnet
         ports:
-          - "8001:8000" # Use different port for new instance
+          - "8001:8000"
+        restart_policy: unless-stopped
+        user: 1000:1001
         volumes:
           - /srv/newsblur:/srv/newsblur
-          - /etc/nginx/sites-enabled:/etc/nginx/sites-enabled
-          - /etc/nginx/sites-available:/etc/nginx/sites-available
-          - /srv/secrets-newsblur:/srv/secrets-newsblur
 
     - name: Wait for new temp container to be healthy
       uri:
-        url: "http://localhost:8001/api/health-check" # Add health check endpoint
+        url: "http://localhost:8001/health-check"
         status_code: 200
         validate_certs: no
       register: result
@@ -150,26 +158,34 @@
 
     - name: Run new Docker container with original name
       docker_container:
-        name: "newsblur_web"
+        name: newsblur_web
-        image: "newsblur/newsblur_web:latest"
+        image: newsblur/newsblur_python3
-        pull: true
+        container_default_behavior: no_defaults
+        pull: yes
+        env:
+          DOCKERBUILD: ""
         state: started
-        restart_policy: always
+        command: gunicorn --config /srv/newsblur/config/gunicorn_conf.py newsblur_web.wsgi:application
-        command: "gunicorn newsblur.wsgi:application --bind :8000 --workers 4"
+        env:
-        hostname: "newsblur_web"
+          TEMP8001: "true"
+        hostname: "{{ inventory_hostname }}"
+        log_driver: json-file
+        log_options:
+          max-size: 100m
+        networks_cli_compatible: yes
+        network_mode: default
         networks:
-          - name: newsblur-network
+          - name: newsblurnet
         ports:
           - "8000:8000"
+        restart_policy: unless-stopped
+        user: 1000:1001
         volumes:
           - /srv/newsblur:/srv/newsblur
-          - /etc/nginx/sites-enabled:/etc/nginx/sites-enabled
+  
-          - /etc/nginx/sites-available:/etc/nginx/sites-available
-          - /srv/secrets-newsblur:/srv/secrets-newsblur
-
     - name: Wait for new original container to be healthy
       uri:
-        url: "http://localhost:8000/api/health-check"
+        url: "http://localhost:8000/health-check"
         status_code: 200
         validate_certs: no
       register: result

apps/static/views.py

@@ -131,3 +131,7 @@ def redis_check(request):
     if key:
         return HttpResponse(unicode(key))
     assert False, "Cannot read from redis-%s database" % pool
+
+
+def health_check(request):
+    return HttpResponse("OK")

config/gunicorn_conf.py

@@ -12,6 +12,9 @@ GIGS_OF_MEMORY = psutil.virtual_memory().total / 1024 / 1024 / 1024.0
 NUM_CPUS = psutil.cpu_count()
 
 bind = "0.0.0.0:8000"
+if os.environ.get("TEMP8001", False):
+    bind = "0.0.0.0:8001"
+
 pidfile = "/srv/newsblur/logs/gunicorn.pid"
 logfile = "/srv/newsblur/logs/production.log"
 accesslog = "/srv/newsblur/logs/production.log"
@@ -25,6 +28,7 @@ forwarded_allow_ips = "*"
 limit_request_line = 16000
 limit_request_fields = 1000
 worker_tmp_dir = "/dev/shm"
+reload = False
 
 workers = max(int(math.floor(GIGS_OF_MEMORY * 2)), 3)
 
@@ -33,6 +37,7 @@ if workers > 16:
 
 if os.environ.get("DOCKERBUILD", False):
     workers = 2
+    reload = True
 
 # If hostname has staging in it, only 2 workers
 if app_env and "staging" in getattr(app_env, "SERVER_NAME", ""):

newsblur_web/entrypoint.sh

@@ -2,5 +2,5 @@
 
 if [[ -z "${TEST}" && "${TEST}" = "True"  ]]
 then echo " ---> Starting test env"
-else python3 manage.py check_db; gunicorn -c config/gunicorn_conf.py --reload newsblur_web.wsgi:application
+else python3 manage.py check_db; gunicorn -c config/gunicorn_conf.py newsblur_web.wsgi:application
 fi

newsblur_web/urls.py

@@ -84,6 +84,7 @@ urlpatterns = [
     url(r"^account/ifttt/v1/", include("apps.oauth.urls")),
     url(r"^account/", include("oauth2_provider.urls", namespace="oauth2_provider")),
     url(r"^monitor/", include("apps.monitor.urls"), name="monitor"),
+    url(r"^health-check/", static_views.health_check, name="health-check"),
     url("", include("django_prometheus.urls")),
 ]