remove gcr repo name from images (#98)

This removes hardcoded GCP project name from images and requires an explicit repository flag to skaffold. Also updating the cloudbuild.yaml for staging with the gcr.io/k8s-skaffold/skaffold image.

Fixes #17.

README.md

@@ -103,24 +103,17 @@ Find **Protocol Buffers Descriptions** at the [`./pb` directory](./pb).
 
         kubectl get nodes
 
-2. Enable Google Container Registry (GCR) on your GCP project and configure the
+1. Enable Google Container Registry (GCR) on your GCP project and configure the
    `docker` CLI to authenticate to GCR:
 
        gcloud services enable containerregistry.googleapis.com
 
        gcloud auth configure-docker -q
 
-3. Set your project ID on image names:
+1. In the root of this repository, run `skaffold run --default-repo=gcr.io/[PROJECT_ID]`,
+   where [PROJECT_ID] is your GCP project ID.
    
-    - Edit `skaffold.yaml`, update the `imageName:` fields that look like
+   This command:
-      `gcr.io/[PROJECT_ID]` with your own GCP project ID.
-
-    - Similarly, edit all Kubernetes Deployment manifests in the
-      [`./kubernetes-manifests`](./kubernetes-manifests) directory. Find the
-      `image:` fields with `gcr.io/[...]` and change them to your own GCP project
-      ID.
-
-5. Run `skaffold run` from the root of this repository. This command:
    - builds the container images
    - pushes them to GCR
    - applies the `./kubernetes-manifests` deploying the application to
@@ -128,9 +121,9 @@ Find **Protocol Buffers Descriptions** at the [`./pb` directory](./pb).
 
    **Troubleshooting:** If you get "No space left on device" error on Google Cloud Shell,
    you can build the images on Google Cloud Build:
-   [Enable the Cloud Build API](https://console.cloud.google.com/flows/enableapi?apiid=cloudbuild.googleapis.com), then run `skaffold run -p gcb` instead.
+   [Enable the Cloud Build API](https://console.cloud.google.com/flows/enableapi?apiid=cloudbuild.googleapis.com), then run `skaffold run -p gcb  --default-repo=gcr.io/[PROJECT_ID]` instead.
 
-6.  Find the IP address of your application, then visit the application on your
+1.  Find the IP address of your application, then visit the application on your
     browser to confirm installation.
 
         kubectl get service frontend-external
@@ -168,7 +161,7 @@ Find **Protocol Buffers Descriptions** at the [`./pb` directory](./pb).
 
     This is required only once.
 
-5. Deploy the application with `skaffold run`.
+5. Deploy the application with `skaffold run --default-repo=gcr.io/[PROJECT_ID]`.
 
 6. Run `kubectl get pods` to see pods are in a healthy and ready state.
 

cloudbuild.yaml

@@ -1,17 +1,24 @@
-# This file is used to build and deploy the app into a GKE cluster using Google
+# Cloudbuild.yaml to deploy to staging
-# Cloud Build.
 #
-# Requirements:
+# PREREQUISITES:
-# - Give the Google Cloud Build service account "Kubernetes Engine Developer"
+# - Cloud Build service account must have role: "Kubernetes Engine Developer"
-#   IAM role on the GCP project.
+
-# - Set up Google Cloud Build trigger on Cloud Console.
+# USAGE:
+# GCP zone and GKE target cluster must be specified as substitutions
+# Example invocation:
+# `gcloud builds submit --config=cloudbuild.yaml --substitutions=_ZONE=us-central1-b,_CLUSTER=demo-app-staging .`
 
 steps:
-- name: gcr.io/k8s-skaffold/skaffold:v0.16.0
+- id: 'Deploy application to cluster'
-  args: ['skaffold', 'run', '-f=skaffold.yaml']
+  name: 'gcr.io/k8s-skaffold/skaffold:v0.18.0'
-  env:
+  entrypoint: 'bash'
-  - 'CLOUDSDK_COMPUTE_ZONE=us-central1-b'
+  args: 
-  - 'CLOUDSDK_CONTAINER_CLUSTER=demo-app-staging'
+  - '-c'
-timeout: 1800s
+  - > 
-options: # Add more power, and more time, for heavy Skaffold build
+    gcloud container clusters get-credentials --zone=$_ZONE $_CLUSTER;
+    skaffold run -f=skaffold.yaml --default-repo=gcr.io/$PROJECT_ID;
+
+# Add more power, and more time, for heavy Skaffold build
+timeout: '3600s'
+options:
   machineType: 'N1_HIGHCPU_8'

kubernetes-manifests/adservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/adservice
+        image: adservice
         ports:
         - containerPort: 9555
         env:

kubernetes-manifests/cartservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/cartservice
+        image: cartservice
         ports:
         - containerPort: 7070
         env:

kubernetes-manifests/checkoutservice.yaml

@@ -24,7 +24,7 @@ spec:
     spec:
       containers:
         - name: server
-          image: gcr.io/microservices-demo-app/checkoutservice
+          image: checkoutservice
           ports:
           - containerPort: 5050
           readinessProbe:

kubernetes-manifests/currencyservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/currencyservice
+        image: currencyservice
         ports:
         - name: grpc
           containerPort: 7000

kubernetes-manifests/emailservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/emailservice
+        image: emailservice
         ports:
         - containerPort: 8080
         readinessProbe:

kubernetes-manifests/frontend.yaml

@@ -24,7 +24,7 @@ spec:
     spec:
       containers:
         - name: server
-          image: gcr.io/microservices-demo-app/frontend
+          image: frontend
           ports:
           - containerPort: 8080
           readinessProbe:

kubernetes-manifests/loadgenerator.yaml

@@ -38,7 +38,7 @@ spec:
           value: "frontend:80"
       containers:
       - name: main
-        image: gcr.io/microservices-demo-app/loadgenerator
+        image: loadgenerator
         env:
         - name: FRONTEND_ADDR
           value: "frontend:80"

kubernetes-manifests/paymentservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/paymentservice
+        image: paymentservice
         ports:
         - containerPort: 50051
         readinessProbe:

kubernetes-manifests/productcatalogservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/productcatalogservice
+        image: productcatalogservice
         ports:
         - containerPort: 3550
         readinessProbe:

kubernetes-manifests/recommendationservice.yaml

@@ -25,7 +25,7 @@ spec:
       terminationGracePeriodSeconds: 5
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/recommendationservice
+        image: recommendationservice
         ports:
         - containerPort: 8080
         readinessProbe:

kubernetes-manifests/shippingservice.yaml

@@ -24,7 +24,7 @@ spec:
     spec:
       containers:
       - name: server
-        image: gcr.io/microservices-demo-app/shippingservice
+        image: shippingservice
         ports:
         - containerPort: 50051
         readinessProbe:

skaffold.yaml

@@ -16,27 +16,31 @@ apiVersion: skaffold/v1alpha5
 kind: Config
 build:
   artifacts:
-  - image: gcr.io/microservices-demo-app/emailservice
+  # image tags are relative; to specify an image repo (e.g. GCR), you
+  # must provide a "default repo" using one of the methods described 
+  # here:
+  # https://github.com/GoogleContainerTools/skaffold/blob/master/docs/concepts.adoc#2-push
+  - image: emailservice
     context: src/emailservice
-  - image: gcr.io/microservices-demo-app/productcatalogservice
+  - image: productcatalogservice
     context: src/productcatalogservice
-  - image: gcr.io/microservices-demo-app/recommendationservice
+  - image: recommendationservice
     context: src/recommendationservice
-  - image: gcr.io/microservices-demo-app/shippingservice
+  - image: shippingservice
     context: src/shippingservice
-  - image: gcr.io/microservices-demo-app/checkoutservice
+  - image: checkoutservice
     context: src/checkoutservice
-  - image: gcr.io/microservices-demo-app/paymentservice
+  - image: paymentservice
     context: src/paymentservice
-  - image: gcr.io/microservices-demo-app/currencyservice
+  - image: currencyservice
     context: src/currencyservice
-  - image: gcr.io/microservices-demo-app/cartservice
+  - image: cartservice
     context: src/cartservice
-  - image: gcr.io/microservices-demo-app/frontend
+  - image: frontend
     context: src/frontend
-  - image: gcr.io/microservices-demo-app/loadgenerator
+  - image: loadgenerator
     context: src/loadgenerator
-  - image: gcr.io/microservices-demo-app/adservice
+  - image: adservice
     context: src/adservice
   tagPolicy:
     gitCommit: {}