release

.gitignore

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+.idea
+.git
+.DS_Store

Dockerfile

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+FROM alpine:3.10.2
+MAINTAINER Serhiy Mitrovtsiy <mitrovtsiy@ukr.net>
+
+LABEL name="kubectl"
+LABEL version="1.0.0"
+LABEL repository="https://github.com/exelban/gcloud"
+LABEL homepage="https://github.com/exelban/gcloud"
+LABEL maintainer="Serhiy Mytrovtsiy <mitrovtsiy@ukr.net>"
+
+LABEL com.github.actions.name="Kuberentes (k8s) cli - kubectl"
+LABEL com.github.actions.description="GitHub Action for working with kubectl (k8s)"
+LABEL com.github.actions.icon="terminal"
+LABEL com.github.actions.color="blue"
+
+ARG KUBE_VERSION="1.15.4"
+
+COPY entrypoint.sh /entrypoint.sh
+
+RUN chmod +x /entrypoint.sh && \
+    apk add --no-cache --update openssl curl ca-certificates && \
+    curl -L https://storage.googleapis.com/kubernetes-release/release/v$KUBE_VERSION/bin/linux/amd64/kubectl -o /usr/local/bin/kubectl && \
+    chmod +x /usr/local/bin/kubectl && \
+    rm -rf /var/cache/apk/*
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["cluster-info"]

README.md

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 # kubectl
-GitHub Action for working with kubectl (k8s)
+
+[![Preview](https://serhiy.s3.eu-central-1.amazonaws.com/Github_repo/kubectl/logo.png)](https://cloud.google.com)
+
+GitHub Action for working with kubectl ([k8s](https://kubernetes.io))
+
+## Usage
+To use kubectl put this step into your workflow:
+
+### Authorization with config file
+```yaml
+- uses: exelban/kubectl@master
+  env:
+    KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
+  with:
+    args: get pods
+```
+
+### Authorization with credentials
+```yaml
+- uses: exelban/kubectl@master
+  env:
+    KUBE_HOST: ${{ secrets.KUBE_HOST }}
+    KUBE_USERNAME: ${{ secrets.KUBE_USERNAME }}
+    KUBE_PASSWORD: ${{ secrets.KUBE_PASSWORD }}
+    KUBE_CERTIFICATE: ${{ secrets.KUBE_CERTIFICATE }}
+  with:
+    args: get pods
+```
+
+## Environment variables
+All these variables need to authorize to kubernetes cluster.  
+I recommend using secrets for this.
+
+### KUBECONFIG file
+First options its to use [kubeconfig file](https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/).  
+
+For this method `KUBE_CONFIG` required.  
+You can find it: `cat $HOME/.kube/config | base64 `.
+
+Optionally you can switch the [context](https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/) (the cluster) if you have few in kubeconfig file. Passing specific context to `KUBE_CONTEXT`. To see the list of available contexts do: `kubectl config get-contexts`.
+
+| Variable | Type |
+| --- | --- |
+| KUBE_CONFIG | string (base64) |
+| KUBE_CONTEXT | string |
+
+### KUBECONFIG file
+Another way to authenticate in the cluster is [HTTP basic auth](https://kubernetes.io/docs/reference/access-authn-authz/authentication/).
+  
+For this you need to pass:
+- host (IP only, without protocol)
+- username
+- password
+- cluster CA certificate
+
+| Variable | Type |
+| --- | --- |
+| KUBE_HOST | string |
+| KUBE_USERNAME | string |
+| KUBE_PASSWORD | string |
+| KUBE_CERTIFICATE | string |
+
+## Example
+```yaml
+name: Get pods
+on: [push]
+
+jobs:
+  deploy:
+    name: Deploy
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      - uses: exelban/kubectl@master
+        env:
+          KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
+        with:
+          args: get pods
+```
+
+```yaml
+name: Get pods
+on: [push]
+
+jobs:
+  deploy:
+    name: Deploy
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      - uses: exelban/kubectl@master
+        env:
+          KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
+
+      - uses: exelban/kubectl@master
+        with:
+          args: get pods
+```
+
+## Versions
+If you need a specific version of kubectl, make a PR with a specific version number.
+After accepting PR the new release will be created.   
+To use a specific version of kubectl use:
+
+```yaml
+- uses: exelban/kubectl@1.14.3
+  env:
+    KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
+  with:
+    args: get pods
+```
+
+## Licence
+[MIT License](https://github.com/exelban/kubectl/blob/master/LICENSE)

entrypoint.sh

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+#!/bin/sh
+
+set -e
+
+if [ ! -d "$HOME/.kube" ]; then
+    mkdir -p $HOME/.kube
+fi
+
+if [ ! -f "$HOME/.kube/config" ]; then
+    if [ ! -z "${KUBE_CONFIG}" ]; then
+
+        echo "$KUBE_CONFIG" | base64 -d > $HOME/.kube/config
+
+        if [ ! -z "${KUBE_CONTEXT}" ]; then
+            kubectl config use-context $KUBE_CONTEXT
+        fi
+
+    elif [ ! -z "${KUBE_HOST}" ]; then
+
+        echo "$KUBE_CERTIFICATE" | base64 -d > $HOME/.kube/certificate
+        kubectl config set-cluster default --server=https://$KUBE_HOST --certificate-authority=$HOME/.kube/certificate > /dev/null
+        kubectl config set-credentials cluster-admin --username=$KUBE_USERNAME --password=$KUBE_PASSWORD > /dev/null
+        kubectl config set-context default --cluster=default --namespace=default --user=cluster-admin > /dev/null
+        kubectl config use-context default > /dev/null
+
+    else
+        echo "No authorization data found. Please provide CONFIG or HTTPS variables. Exiting...."
+        exit 1
+    fi
+fi
+
+echo ::add-path::/usr/local/bin/kubectl
+
+kubectl $*