Kubernetes Change Context (k8s-context)

Customize Kubernetes Change Context (KUBECONFIG)

Available Tags

Alpine

Image name	Size
`devopscorner/k8s-context:latest`
`devopscorner/k8s-context:alpine`
`devopscorner/k8s-context:alpine-latest`
`devopscorner/k8s-context:1.1.9`
`devopscorner/k8s-context:go1.21-alpine3.18`
`devopscorner/k8s-context:go1.21.3-alpine3.18`

Alpine (Depreciated)

Image name	Size
`devopscorner/k8s-context:1.1.8`
`devopscorner/k8s-context:1.1.7`
`devopscorner/k8s-context:1.1.6`
`devopscorner/k8s-context:1.1.5`
`devopscorner/k8s-context:1.1.4`
`devopscorner/k8s-context:1.1.3`
`devopscorner/k8s-context:alpine-3.15`
`devopscorner/k8s-context:go1.19-alpine3.15`
`devopscorner/k8s-context:go1.19.3-alpine3.15`
`devopscorner/k8s-context:alpine-3.16`
`devopscorner/k8s-context:go1.19-alpine3.16`
`devopscorner/k8s-context:go1.19.5-alpine3.16`
`devopscorner/k8s-context:alpine-3.17`
`devopscorner/k8s-context:go1.19-alpine3.17`
`devopscorner/k8s-context:go1.19.5-alpine3.17`

K8S-Context


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| | _( _ ) ___        ___ ___  _ __ | |_ _____  _| |_
| |/ / _ \/ __|_____ / __/ _ \| '_ \| __/ _ \ \/ / __|
|   < (_) \__ \_____| (_| (_) | | | | ||  __/>  <| |_
|_|\_\___/|___/      \___\___/|_| |_|\__\___/_/\_\\__|


===================================
[[  K8S-CONTEXT (K8C)  ]] - v1.1.9
===================================
Usage:
  k8c [command]

Available Commands:
  completion  Generate the autocompletion script for the specified shell
  get         Get Kubernetes resources (ns, svc, deploy, po)
  help        Help about any command
  list        List all available Kubernetes contexts
  load        Load a kubeconfig file
  merge       Merge multiple kubeconfig files
  show        Describe / show kubernetes resources (po, logs, port, node)
  switch      Switch to different context
  version     Print the version number of k8s-context

Flags:
  -h, --help                help for k8s-context
      --kubeconfig string   Path to kubeconfig file (default "/home/devopscorner/.kube/config")

Use "k8c [command] --help" for more information about a command.

How to Use

Clone this repository

git clone https://github.com/devopscorner/k8s-context.git

-- or --

git clone git@github.com:devopscorner/k8s-context.git

Run Initialize

make init

-- or --

cd src
go mod tidy

Set Environment

export GO_APP=k8s-context
export SOURCES=$(sh find . -name '*.go' | grep -v /vendor/)
export VERSION=$(sh git describe --tags --always --dirty)
export GOPKGS=$(sh go list ./ | grep -v /vendor/)
export GO111MODULE=on
export LDFLAGS=-X github.com/devopscorner/k8s-context/config.Version=$(VERSION) -w -s

# Linux x86
export GOARCH=amd64
export GOOS=linux

# Mac Intel
export GOOS=darwin
export GOARCH=amd64

# Mac M1/M2 (Arm)
export GOOS=darwin
export GOARCH=arm64

Build Binary

# Linux x86
make build

# Mac Intel
make build-mac-amd

# Mac M1/M2 (Arm)
make build-mac-arm

-- or --

cd src
GO111MODULE=$(GO111MODULE) GOOS=$(GOOS) GOARCH=$(GOARCH) CGO_ENABLED=0 go build -o build/$(GO_APP) $(BUILD_FLAGS) -ldflags "$(LDFLAGS)" ./main.go

Running Binary
```
cd src/build
./k8c
```

Autocompletion Script

./k8c completion bash|fish|powershell|zsh

Using Contexts

Merge Multi Config

./k8c merge [new-config] [config-1] [config-2] ... [config-n]
---
eg: (merge into single file $HOME/.kube/config)

./k8c merge $HOME/.kube/config  $HOME/.kube/config-staging-dev $HOME/.kube/config-staging-uat $HOME/.kube/config-staging-qa

Discovery All KUBECONFIG Files Inside ~/.kube Folder --- Interactive Mode

./k8c load
---
Select a kubeconfig file:  [Use arrows to move, type to filter]
> /home/devopscorner/.kube/.switch_tmp/config.1072356766.tmp
/home/devopscorner/.kube/.switch_tmp/config.3841581520.tmp

Available Kubernetes contexts:
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-lab
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-dev-staging
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-uat-staging
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-production

List Context(s)

KUBECONFIG=$HOME/.kube/config
kubectl config get-contexts

-- or --

## Default KUBECONFIG path (`/.kube/config`) ##
./k8c list
---
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-lab

## Spesific Kubeconfig ##
./k8c list -f $HOME/.kube/config-cluster
---
Available Kubernetes contexts:
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-dev-staging
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-uat-staging

Switch (select) Context(s) --- Interactive Mode

## Default KUBECONFIG path (`/.kube/config`) ##
./k8c switch
---
? Select a context  [Use arrows to move, type to filter]
> arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-lab

> Changed context to: arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-dev-staging

## Spesific Kubeconfig ##
./k8c switch - $HOME/.kube/config-cluster
---
? Select a context  [Use arrows to move, type to filter]
> arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-dev-staging
arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorfner-uat-staging

> Changed context to: arn:aws:eks:ap-southeast-1:YOUR_AWS_ACCOUNT:cluster/devopscorner-dev-staging

Run Spesific KUBECONFIG

KUBECONFIG=$HOME/.kube/config-new-cluster
kubectl config use [cluster_name]

-- or --

./k8c switch -f $HOME/.kube/config-new-cluster

Get Resources Kubernetes

Namespaces

./k8c get namespace

-- or --

./k8c get ns

Services

./k8c get services

-- or --

./k8c get svc

Deployments

./k8c get deployments

-- or --

./k8c get deploy

Pods
```
./k8c get pods

-- or --

./k8c get po
```

Endpoints

./k8c get endpoints

-- or --

./k8c get ep

Get Resources By Filtering Namespace (Comma-Separated)

Namespaces

./k8c get namespace -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get namespace --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

-- or --

./k8c get ns -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get ns --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

Services

./k8c get services -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get services --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

-- or --

./k8c get svc -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get svc --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

Deployments

./k8c get deployments -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get deployments --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

-- or --

./k8c get deploy -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get deploy --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

Pods

./k8c get pods -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get pods --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

-- or --

./k8c get po -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config
./k8c get po --namespace ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

Endpoints

./k8c get endpoints -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

-- or --

./k8c get ep -n ns1,ns2,ns3 --kubeconfig=$HOME/.kube/config

Show (Describe) Resources from Nodes, Pods, Logs & Port Forward

Pods

./k8c show po [pods_name] -n [namespace]
./k8c show po [pods_name] --namespace [namespace]

Logs

./k8c show logs [pods_name] -n [namespace]
./k8c show logs [pods_name] --namespace [namespace]

Port Forward

./k8c show port [pods_name] -n [namespace]
./k8c show port [pods_name] --namespace [namespace]

Node
```
./k8c show node [node_name]
```

Integrated with CI/CD Dockerfile Pipeline

# Dockerfile
COPY --from=devopscorner/k8s-context:latest /usr/local/bin/k8c /usr/local/bin/k8c

Tested Environment

Versioning

Docker version

docker version

Client:
  Cloud integration: v1.0.22
  Version:           20.10.17-rd
  API version:       1.41
  Go version:        go1.17.11
  Git commit:        c2e4e01
  Built:             Fri Jul 22 18:31:17 2022
  OS/Arch:           darwin/amd64
  Context:           default
  Experimental:      true

Docker-Compose version

docker-compose -v
---
Docker Compose version v2.11.1

Golang Version Manager (GVM)

gvm version
---
Go Version Manager v1.0.22 installed at /Users/devopscorner/.gvm

Golang Version

go version
---
go version go1.21.3 darwin/arm64

Security Check

Make sure that you didn't push sensitive information in this repository

Copyright

Author: Dwi Fahni Denni (@zeroc0d3)
Vendor: DevOps Corner Indonesia (devopscorner.id)
License: Apache v2

Name		Name	Last commit message	Last commit date
Latest commit History 1,362 Commits
.github/workflows		.github/workflows
src		src
.gitignore		.gitignore
.goreleaser.yml		.goreleaser.yml
CHANGELOG.md		CHANGELOG.md
Dockerfile		Dockerfile
Dockerfile.alpine-3.15		Dockerfile.alpine-3.15
Dockerfile.alpine-3.16		Dockerfile.alpine-3.16
Dockerfile.alpine-3.17		Dockerfile.alpine-3.17
Dockerfile.alpine-3.18		Dockerfile.alpine-3.18
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
clone.json		clone.json
docker-compose.yml		docker-compose.yml
dockerhub-build.sh		dockerhub-build.sh
dockerhub-push.sh		dockerhub-push.sh
dockerhub-tag.sh		dockerhub-tag.sh
ecr-build.sh		ecr-build.sh
ecr-pull.sh		ecr-pull.sh
ecr-push.sh		ecr-push.sh
ecr-tag.sh		ecr-tag.sh
git-clone.sh		git-clone.sh
run-docker.sh		run-docker.sh
start-build.sh		start-build.sh

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Kubernetes Change Context (k8s-context)

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Alpine

Alpine (Depreciated)

K8S-Context

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Versioning

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Kubernetes Change Context (k8s-context)

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K8S-Context

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Versioning

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