added readme and essentials to github pipeline

.github/workflows/image.yml

@@ -3,7 +3,7 @@
 # separate terms of service, privacy policy, and support
 # documentation.
 
-name: Create and publish a Docker image
+name: Docker Pipeline
 
 on:
   push:
@@ -23,6 +23,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - flavour-name: "essentials"
+            flavour-package: ""
           - flavour-name: "mongodb"
             flavour-package: "mongodb mongodb-tools"
           - flavour-name: "redis"

README.md

@@ -1,3 +1,28 @@
 # cloud-swiss-army-knife
 
 ![Docker Workflow](https://github.com/AlbertHahn/cloud-swiss-army-knife/actions/workflows/image.yml/badge.svg)
+
+# About
+
+This repository serves multiple images based on alpine that come preinstalled with linux tools that are essential for the daily devops business like `wget, curl, jq, aws-cli, python` etc.
+
+## Flavours
+
+To minimize image size they come in different "flavours" each with another database client or without.
+
+### Images
+
+Preinstalled with no database \
+`ghcr.io/alberthahn/cloud-swiss-army-knife-essentials`
+
+Preinstalled with mongodb && mongodb-tools \
+`ghcr.io/alberthahn/cloud-swiss-army-knife-mongodb`
+
+Preinstalled with redis \
+`ghcr.io/alberthahn/cloud-swiss-army-knife-redis`
+
+Preinstalled with mysql-client \
+`ghcr.io/alberthahn/cloud-swiss-army-knife-mysql`
+
+Preinstalled with postgresql-client \
+`ghcr.io/alberthahn/cloud-swiss-army-knife-postgresql`