Add docker image

Author: aledbf

.dockerignore

@@ -0,0 +1,4 @@
+.env
+.github
+.git
+*.json

Dockerfile

@@ -0,0 +1,34 @@
+FROM alpine:3.14
+
+RUN apk add --no-cache \
+    bash \
+    curl \
+    python3 \
+    py3-pip \
+    jq
+
+ARG CLOUD_SDK_VERSION=351.0.0
+ARG HELM_VERSION=v3.6.3
+
+RUN curl -fsSL "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl" -o /usr/local/bin/kubectl \
+  && chmod +x /usr/local/bin/kubectl
+
+RUN curl -O https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-sdk-${CLOUD_SDK_VERSION}-linux-x86_64.tar.gz \
+  && tar xzf google-cloud-sdk-${CLOUD_SDK_VERSION}-linux-x86_64.tar.gz \
+  && rm google-cloud-sdk-${CLOUD_SDK_VERSION}-linux-x86_64.tar.gz
+
+RUN mkdir -p /tmp/helm/ \
+  && curl -fsSL https://get.helm.sh/helm-${HELM_VERSION}-linux-amd64.tar.gz | tar -xzvC /tmp/helm/ --strip-components=1 \
+  && cp /tmp/helm/helm /usr/local/bin/helm \
+  && rm -rf /tmp/helm
+
+ENV PATH /google-cloud-sdk/bin:$PATH
+
+RUN gcloud components install beta
+RUN gcloud components install alpha
+
+WORKDIR /gitpod
+
+COPY . /gitpod
+
+ENTRYPOINT ["/gitpod/setup.sh"]

Makefile

@@ -9,15 +9,15 @@ build: ## Build docker image containing the required tools for the installation
 	@docker build --quiet . -t ${IMG}
 
 DOCKER_RUN_CMD = docker run -it \
-	--env-file ${PWD}/.env \
-	--volume ${PWD}/.kubeconfig:/gitpod/.kubeconfig \
-	--volume ${PWD}/eks-cluster.yaml:/gitpod/eks-cluster.yaml \
+	--env GOOGLE_APPLICATION_CREDENTIALS=/gcloud/application_default_credentials.json \
+	--volume $$HOME/.config/gcloud:/root/.config/gcloud \
+	--volume $$PWD:/gitpod \
 	${IMG} $(1)
 
 install: ## Install Gitpod
 	@echo "Starting install process..."
-	@touch ${PWD}/.kubeconfig
-	@$(call DOCKER_RUN_CMD, --install)
+	@test -s $$HOME/.config/gcloud/application_default_credentials.json || { echo "GCP default dredentials do not exist. Run [gcloud auth application-default login] to configure them"; exit 1; }
+	$(call DOCKER_RUN_CMD, --install)
 
 uninstall: ## Uninstall Gitpod
 	@echo "Starting uninstall process..."

README.md

@@ -5,7 +5,7 @@
 Before starting the installation process, you need:
 
 - A GCP account with Administrator access
-  - [Create one now by clicking here](https://aws.amazon.com/getting-started/)
+  - [Create one now by clicking here](https://console.cloud.google.com/)
 - GCP credentials set up.
 - A `.env` file with basic details about the environment.
   - We provide an example of such file [here](.env.example).
@@ -20,9 +20,9 @@ make install
 The whole process takes around twenty minutes. In the end, the following resources are created:
 
 - a GKE cluster running Kubernetes v1.21
-
-- ALB load balancer with TLS termination and re-encryption
+- GCP L4 load balancer
 - Cloud SQL Mysql database
+- Cloud DNS zone
 - In-cluster docker registry using [Cloud Storage](https://cloud.google.com/storage) as storage backend
 - [calico](https://docs.projectcalico.org) as CNI and NetworkPolicy implementation
 - [cert-manager](https://cert-manager.io/) for self-signed SSL certificates
@@ -60,15 +60,13 @@ When the provisioning and configuration of the cluster is done, the script shows
 like:
 
 ```shell
-Load balancer hostname: k8s-default-gitpod-.......elb.amazonaws.com
+Load balancer IP address: XXX.XXX.XXX.XXX
 ```
 
-This is the value of the `CNAME` field that needs to be configured in the DNS domain, for the record `<domain>`, `*.ws.<domain>` and `*.<domain>`
-
-After these three records are configured, please open the URL `https://<domain>/workspaces`.
+Please open the URL `https://<domain>/workspaces`.
 It should display the gitpod login page similar to the next image.
 
-> If the property `ROUTE53_ZONEID` is enabled in the .env file, we install [external-dns](https://github.com/kubernetes-sigs/external-dns) and such update is not required
+*DNS propagation* can take several minutes.
 
 ![Gitpod login page](./images/gitpod-login.png "Gitpod Login Page")
 
@@ -88,7 +86,7 @@ make auth
 
 ## Destroy the cluster and GCP resources
 
-Remove the GKE cluster running:
+Remove the GCP cluster running:
 
 ```shell
 make uninstall