Merge pull request #233 from alphagov/status-page

Status page

app.py

@@ -1,7 +1,6 @@
 import os
 from flask.ext.script import Manager, Server
-from flask_migrate import Migrate, MigrateCommand
-from app import (create_app, get_app_version)
+from app import create_app
 
 
 application = create_app(os.getenv('NOTIFICATIONS_ADMIN_ENVIRONMENT') or 'development')
@@ -17,13 +16,5 @@ def list_routes():
         print("{:10} {}".format(", ".join(rule.methods - set(['OPTIONS', 'HEAD'])), rule.rule))
 
 
-@manager.command
-def app_version():
-    """
-    Retrieve the version of the api.
-    """
-    return get_app_version()
-
-
 if __name__ == '__main__':
     manager.run()

app/__init__.py

@@ -183,15 +183,3 @@ def register_errorhandlers(application):
         return useful_headers_after_request(resp)
     for errcode in [401, 404, 403, 500]:
         application.errorhandler(errcode)(render_error)
-
-
-def get_app_version():
-    build = 'n/a'
-    build_time = "n/a"
-    try:
-        from app import version
-        build = version.__build__
-        build_time = version.__time__
-    except:
-        pass
-    return build, build_time

app/status/views/healthcheck.py

@@ -1,18 +1,15 @@
-from flask import jsonify
-
+from flask import jsonify, request
+from app import version
 from app.status import status
 
 
-@status.route('/_status')
-def status():
-    from app import (get_app_version, status_api_client)
-    api_status = 'n/a'
-    try:
-        api_status = status_api_client.get_status()
-    except:
-        api_status = 'n/a'
-    build, build_time = get_app_version()
-    return jsonify(status="ok",
-                   api_status=api_status,
-                   api_build=build,
-                   api_built_time=build_time), 200
+@status.route('/_status', methods=['GET'])
+def show_status():
+    if request.args.get('elb', None):
+        return jsonify(status="ok"), 200
+    else:
+        return jsonify(
+            status="ok",
+            travis_commit=version.__travis_commit__,
+            travis_build_number=version.__travis_job_number__,
+            build_time=version.__time__), 200

app/version.py

@@ -1,2 +1,3 @@
-__build__ = ""
-__time__ = ""
+__travis_commit__ = "dev"
+__time__ = "dev"
+__travis_job_number__ = "dev"

scripts/update_version_file.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+#
+# Update the version file of the project from the Travis build details
+#
+sed -i -e "s/__travis_commit__ =.*/__travis_commit__ = \"$TRAVIS_COMMIT\"/g" ./app/version.py
+sed -i -e "s/__travis_job_number__ =.*/__travis_job_number__ = \"$TRAVIS_BUILD_NUMBER\"/g" ./app/version.py
+sed -i -e "s/__time__ =.*/__time__ = \"$(date +%Y-%m-%d:%H:%M:%S)\"/g" ./app/version.py