Completed the wrkflow and updated readme DEVOPS-260 DEVOPS-258

Author: githubofkrishnadhas

README.md

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+[![Generic badge](https://img.shields.io/badge/maintained-yes-6acb14.svg)](https://shields.io/)
+[![Generic badge](https://img.shields.io/badge/maintained%20by-githubofkrishnadhas-6acb14.svg)](https://shields.io/)
+
+[![build-publish-jdk11-dind-image](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk11-dind-image.yaml/badge.svg)](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk11-dind-image.yaml)
+[![build-publish-jdk11-tf-deploy-image](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk11-tf-depoy-image.yaml/badge.svg)](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk11-tf-depoy-image.yaml)
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+[![build-publish-jdk17-dind-image](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk17-dind-image.yaml/badge.svg)](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk17-dind-image.yaml)
+[![build-publish-jdk17-tf-deploy-image](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk17-tf-depoy-image.yaml/badge.svg)](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk17-tf-depoy-image.yaml)
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+[![build-publish-jdk21-dind-image](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk21-dind-image.yaml/badge.svg)](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk21-dind-image.yaml)
+[![build-publish-jdk21-tf-deploy-image](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk21-tf-depoy-image.yaml/badge.svg)](https://github.com/devwithkrishna/jenkins-docker-slave-images/actions/workflows/build-publish-jdk21-tf-depoy-image.yaml)
+
+![Github stars](https://badgen.net/github/stars/devwithkrishna/jenkins-docker-slave-images?icon=github&label=stars)
+![Github forks](https://badgen.net/github/forks/devwithkrishna/jenkins-docker-slave-images?icon=github&label=forks)
+![Github issues](https://img.shields.io/github/issues/devwithkrishna/jenkins-docker-slave-images)
+![Github last commit](https://img.shields.io/github/last-commit/devwithkrishna/jenkins-docker-slave-images)
+
+# jenkins-docker-slave-images
+These are docker images created to use as a jenkins slave
+
+# How the Build flow works
+
+```shell
+├───.github
+│   └───workflows
+│            ├───build-publish-jdk11-dind-image.yaml
+│            ├───build-publish-jdk11-tf-deploy-image.yaml
+│            ├───build-publish-jdk17-dind-image.yaml
+│            ├───build-publish-jdk17-tf-deploy-image.yaml
+│            ├───build-publish-jdk21-dind-image.yaml
+│            └───build-publish-jdk21-tf-deploy-image.yaml
+├───jdk-11
+│   ├───dind
+│   └───tf-deploy
+├───jdk-17
+│   ├───dind
+│   └───tf-deploy
+└───jdk-21
+    ├───dind
+    └───tf-deploy
+```
+
+* Build and push to Dockerhub will be taken care by ``docker/build-push-action``
+
+* Authentication to Dockerhub will be taken care by ``docker/login-action``
+
+* Image scanning is carried by using [trivy](https://github.com/aquasecurity/trivy)
+
+* The builds are scheduled which means they will be triggered at the configured time.
+
+* Each time the build is triggered, 2 versions of image are pushed (also multi arch images)
+
+* One image version will be latest as usual and other will be in a format `<image name: <software component 1 short name>_<softwarefersion>_<software component 1 short name>_<softwarefersion>>`
+
+  * Eg: dockerofkrishnadhas/jenkins-slave-tf-deploy-jdk17-image:tf_v1.9.1_az_2.61.0
+
+    * This means `dockerofkrishnadhas/jenkins-slave-tf-deploy-jdk17-image` has `terraform 1.9.1` version and `azure cli 2.61.0` version
+
+* These are set as cron to be executed monthly once on 17th of every month
+
+* get_software_versions.sh ➡️ This script executes and get the live software versions available in image and passes them as an environment variable in github workflow.