Docker image for github action runner.

github-action-runner-docker/Dockerfile

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+FROM ubuntu:18.04
+
+ARG RUNNER_VERSION=2.287.1
+ARG TOKEN
+ARG NAME=internal-runner
+
+USER root
+
+WORKDIR /actions-runner
+
+RUN apt-get update -qq \
+  && apt-get install -y curl \
+  && curl -o actions-runner-linux-x64-${RUNNER_VERSION}.tar.gz -L https://github.com/actions/runner/releases/download/v${RUNNER_VERSION}/actions-runner-linux-x64-${RUNNER_VERSION}.tar.gz \
+  && tar xzf ./actions-runner-linux-x64-${RUNNER_VERSION}.tar.gz \
+  && ./bin/installdependencies.sh \
+  && rm ./actions-runner-linux-x64-${RUNNER_VERSION}.tar.gz \
+  && apt-get purge -y \
+  && chown 1000:1000 -R /actions-runner
+
+USER 1000
+
+RUN ./config.sh --url https://github.com/EQ-Alpha/KeyDB --token ${TOKEN} logout --name ${NAME} --unattended
+
+ENTRYPOINT ["./run.sh"]

github-action-runner-docker/README.md

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+# Github action runner.
+
+## Overview
+ All details are [here](https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners). 
+ In brief overview, self-hosted action runner is running on our hosts, connects to the github and waits for the
+ jobs to execute. Bellow is instruction on how to create image for the runner and start it in our Kubernetes 
+ cluster.
+
+## Creating a new runner.
+
+1. Got [github](https://github.com/EQ-Alpha/KeyDB/settings/actions/runners/new?arch=x64&os=linux) to create a new runner.
+2. The link above should display a script for installing runner. It should be aligned with what we have in a
+[Dockerfile](https://github.sc-corp.net/Snapchat/keydb-internal/github-action-runner-docker/Dockerfile). 
+3. Take the token from that script. Should be in "Configure" section: 
+    ``` 
+    ./config.sh --url https://github.com/EQ-Alpha/KeyDB --token AUQJRVZIQCLO4ZQOZAOC3L3B7RHIU
+    ```
+4. Take the version of the runner from the "Download" section from file name. Example is "2.287.1",
+5. Build and public the image: 
+    ```
+   ./build-and-publish.sh --token <token> --version <version>
+   ```
+    Docker will register runner in Github during the build. If you got an error
+```A runner exists with the same name```, it means you've already built the image
+for runner with that name. In this case you can either give a new name to the runner
+(using ```--name <name>``` parameter to the build script) or delete existing runner in
+[github](https://github.com/EQ-Alpha/KeyDB/settings/actions/runners). Deleting the
+runner will break existing runners running in our infrastructure. You may want to
+delete them.
+6. The default image is "[gcr.io/caching-infra/keydb-github-action-runner](https://console.cloud.google.com/gcr/images/caching-infra/global/keydb-github-action-runner?project=caching-infra)"
+but you can set any other image full name to the building script (```--image <full-image-name>```). 
+7. Deploy new image to cluster [caching-infra--t-us-east4--staging](https://switchboard.sc-corp.net/#/services/caching-infra/cloud-resource/caching-infra--t-us-east4--staging/manage?region=us-east4&provider=GOOGLE&project_id=caching-infra):
+   * Configure kubectl for the cluster.
+   * Delete existing runner using [deployment manifest](https://github.sc-corp.net/Snapchat/keydb-internal/github-action-runner-docker/deployment.yaml): 
+        ```
+        kubectl delete -f deployment.yaml
+        ```
+   * Start a new runner:
+        ```
+        kubectl apply -f deployment.yaml
+        ```
+     Deployment manifest uses [gcr.io/caching-infra/keydb-github-action-runner](https://console.cloud.google.com/gcr/images/caching-infra/global/keydb-github-action-runner?project=caching-infra).
+     If you specified another image name in build script, update deployment manifest with an appropriate image.
+8. Validate on [github](https://github.com/EQ-Alpha/KeyDB/settings/actions/runners) that new runner is online.

github-action-runner-docker/build-and-publish.sh

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+#!/bin/bash
+set -eu
+set -o pipefail
+
+# Color for displaying error messages
+red=`tput setaf 1`
+reset=`tput sgr0`
+
+# Default value for the command line flag
+DEFAULT_VERSION="2.287.1"
+DEFAULT_IMG="gcr.io/caching-infra/keydb-github-action-runner:latest"
+DEFAULT_NAME="internal-runner"
+FLAGS_token=""
+FLAGS_version=$DEFAULT_VERSION
+FLAGS_img=$DEFAULT_IMG
+FLAGS_name=$DEFAULT_NAME
+
+
+timestamp() {
+    date "+%m/%d %H:%M:%S"
+}
+
+print_usage() {
+    echo "Usage:"
+    echo "  ./{script} [flags]"
+    echo ""
+    echo "Flags:"
+    echo "  -t, --token: Token taken from onboarding script from github. (required)"
+    echo "  -i, --image: Full docker image name you want to build and push. Default value is ${DEFAULT_IMG}"
+    echo "  -v, --version: Action runner version. Can be taked from onboarding script from github. Default version is ${DEFAULT_VERSION}."
+    echo "  -n, --name: Action runner name. Default name is ${DEFAULT_NAME}."
+}
+
+# Processing flags
+while [ ! $# -eq 0 ]
+do
+    # The shift below ensures the unprocessed flag is always at $1
+    case "$1" in
+        --help | -h)
+            print_usage
+            exit 0
+            ;;
+        --image | -i)
+            FLAGS_img="$2"
+            shift
+            ;;
+        --token | -t)
+            FLAGS_token="$2"
+            shift
+            ;;
+        --version | -v)
+            FLAGS_version="$2"
+            shift
+            ;;
+        --name | -n)
+            FLAGS_name="$2"
+            shift
+            ;;
+        *)
+            echo "${red}"
+            echo "Unrecognized flag: $1."
+            echo "Run with '--help' flag to see the supported flags."
+            echo "${reset}"
+            exit 1
+            ;;
+    esac
+    shift
+done
+
+if [[ ${FLAGS_token} == "" ]]; then
+    echo "${red} ERROR:token is missing"
+    echo ${reset}
+    print_usage
+    exit 1
+fi
+
+echo "Building image ${FLAGS_img} ..."
+docker build --build-arg TOKEN=${FLAGS_token} --build-arg RUNNER_VERSION=${FLAGS_version} --build-arg NAME=${FLAGS_name} -t ${FLAGS_img} .
+echo "Pushing image ${FLAGS_img}...."
+docker push ${FLAGS_img}

github-action-runner-docker/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: keydb-runner
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: keydb-runner
+  template:
+    metadata:
+      labels:
+        app: keydb-runner
+    spec:
+      containers:
+        - name: keydb-runner
+          image: gcr.io/caching-infra/keydb-github-action-runner:latest
+          # Since it's 'latest' tag we're reusing it.
+          imagePullPolicy: Always