Use ConfigMap for all microservices

Author: jaimebuelta

ch11/kubernetes/frontend/deployment.yaml

@@ -27,11 +27,9 @@ spec:
                   imagePullPolicy: Never
                   ports:
                       - containerPort: 8000
-                  env:
-                      - name: THOUGHTS_BACKEND_URL
-                        value: http://thoughts-service
-                      - name: USER_BACKEND_URL
-                        value: http://users-service
+                  envFrom:
+                      - configMapRef:
+                            name: shared-config
                   volumeMounts:
                       - name: public-key
                         mountPath: "/opt/keys/"

ch11/kubernetes/thoughts_backend/deployment.yaml

@@ -22,17 +22,12 @@ spec:
                   imagePullPolicy: Never
                   ports:
                       - containerPort: 8000
+                  envFrom:
+                      - configMapRef:
+                            name: shared-config
                   env:
-                      - name: DATABASE_ENGINE
-                        value: POSTGRESQL
                       - name: POSTGRES_DB
                         value: thoughts
-                      - name: POSTGRES_USER
-                        value: postgres
-                      - name: POSTGRES_PORT
-                        value: "5432"
-                      - name: POSTGRES_HOST
-                        value: "127.0.0.1"
                       - name: POSTGRES_PASSWORD
                         valueFrom:
                             secretKeyRef:

ch11/kubernetes/users_backend/deployment.yaml

@@ -22,17 +22,12 @@ spec:
                   imagePullPolicy: Never
                   ports:
                       - containerPort: 8000
+                  envFrom:
+                      - configMapRef:
+                            name: shared-config
                   env:
-                      - name: DATABASE_ENGINE
-                        value: POSTGRESQL
                       - name: POSTGRES_DB
                         value: thoughts
-                      - name: POSTGRES_USER
-                        value: postgres
-                      - name: POSTGRES_PORT
-                        value: "5432"
-                      - name: POSTGRES_HOST
-                        value: "127.0.0.1"
                       - name: POSTGRES_PASSWORD
                         valueFrom:
                             secretKeyRef: