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https://github.com/lukaszraczylo/docker-gcp-kubectl

Docker image allowing you to use kubectl ( and google cloud SDK commands ), skaffold, inlets pro within docker container, with minimal configuration. Useful for port forwarding.
https://github.com/lukaszraczylo/docker-gcp-kubectl

amd64 arm64 docker google-cloud google-cloud-platform kubectl raspberrypi

Last synced: 19 days ago
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Docker image allowing you to use kubectl ( and google cloud SDK commands ), skaffold, inlets pro within docker container, with minimal configuration. Useful for port forwarding.

Host: GitHub
URL: https://github.com/lukaszraczylo/docker-gcp-kubectl
Owner: lukaszraczylo
Created: 2021-04-17T12:27:08.000Z (almost 4 years ago)
Default Branch: main
Last Pushed: 2022-07-03T10:23:50.000Z (over 2 years ago)
Last Synced: 2024-11-12T15:45:44.149Z (3 months ago)
Topics: amd64, arm64, docker, google-cloud, google-cloud-platform, kubectl, raspberrypi
Language: Dockerfile
Homepage:
Size: 22.5 KB
Stars: 1
Watchers: 3
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

# Google Cloud GKE docker kubectl

- [Google Cloud GKE docker kubectl](#google-cloud-gke-docker-kubectl)
- [Purpose](#purpose)
- [Really important thing](#really-important-thing)
- [Preinstalled binaries](#preinstalled-binaries)
- [Example usage](#example-usage)
- [In Docker](#in-docker)
- [In Kubernetes](#in-kubernetes)

### Purpose

I've created this project with the sole purpose of enabling port forwarding from my GKE cluster into the
test cluster I've been running locally. It should support most of the functions ( except of pre-compiled binaries like Anthos ),
although due to Google Cloud SDK being closed source I am unable to verify what exactly works.

*This image supports both ARM64 and AARCH64 ( raspberry Pi 4 ) architectures.*

This docker image works fine with Kubernetes and local run and requires supplying following environment variables to set up the configuration.

* *GCP_PROJECT:* Your GCP project name
* *GCP_CLUSTER:* Your GKE cluster name
* *GCP_REGION:* Your GKE cluster region
* *GOOGLE_APPLICATION_CREDENTIALS:* Your GCP credentials JSON file path

### Really important thing
Please make sure that Docker NETWORK is set to HOST ( which unfortunately does not work too well on Macs ), otherwise `gcloud` have issues with reaching the cluster endpoint for kubectl.
( Yes, took me few hours to figure it out so I'm trying to save your time here ).

### Preinstalled binaries

* Google Cloud SDK
* Kubectl
* Skaffold
* Inlets PRO

If you'd like to mount directories ( for example for skaffold ) I'd recommend `-v $PATH/skaffold:/srv/data`.

### Example usage

You can set environment variable `SKIP_GCP` to any value to skip setting up the Google Cloud Platform credentials ( which may take a while )

#### In Docker

```bash
docker run
--network host \
-v $(echo $HOME)/.gcp/cred.json:/srv/.kube/gcp.json \
-e GOOGLE_APPLICATION_CREDENTIALS=/srv/.kube/gcp.json \
-e GCP_PROJECT=myGCPProjectName -e GCP_CLUSTER=myGKEClusterName \
-e GCP_REGION=europe-west1-a \
-it ghcr.io/lukaszraczylo/docker-gcp-kubectl:latest \
kubectl port-forward --address 0.0.0.0 -n myProjectNamespace service/tgnats-client 4222:4222
```

#### In Kubernetes

```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: tg7-fwd-live
labels:
app: tg7-fwd-live
type: support
namespace: tg7
spec:
replicas: 1
selector:
matchLabels:
app: tg7-fwd-live
type: support
template:
metadata:
labels:
app: tg7-fwd-live
type: support
spec:
volumes:
- name: kubefwd-storage
persistentVolumeClaim:
claimName: nfs-shared-pvc
securityContext:
runAsUser: 65534 # nobody
hostNetwork: true
imagePullSecrets:
- name: docker-ghcr
containers:
- name: tg7-fwd-live
image: ghcr.io/lukaszraczylo/docker-gcp-kubectl:latest
ports:
- name: fwd-nats-pt
containerPort: 4222
volumeMounts:
- mountPath: /srv/.kube
name: kubefwd-storage
subPath: kube-fwd
args: ["kubectl", "port-forward", "--address", "0.0.0.0", "-n", "tg", "service/tgnats-client", "4222:4222"]
env:
- name: GOOGLE_APPLICATION_CREDENTIALS
value: /srv/.kube/gcp.json
- name: GCP_PROJECT
value: MyGCPProject
- name: GCP_CLUSTER
value: MyGKECluster
- name: GCP_REGION
value: europe-west1-a
---
apiVersion: v1
kind: Service
metadata:
namespace: tg7
name: nats-fwd-cli
spec:
ports:
- name: nats-fwd-pt
port: 4222
targetPort: 4222
selector:
app: tg7-fwd-live
type: support
```