[kots] Add new config to upload dockerConfigJson file

Signed-off-by: Tarun Pothulapati <tarun@gitpod.io>

Author: Pothulapati

install/kots/manifests/gitpod-installer-job.yaml

@@ -329,6 +329,24 @@ spec:
                   "${GITPOD_OBJECTS}/templates/gitpod.yaml"
               fi
 
+              if [ '{{repl ConfigOptionNotEquals "reg_docker_config" "" }}' = "true" ];
+              then
+                echo "Gitpod: Add given extra docker config json file"
+
+                yq eval-all '(select(.kind == "Secret" and .metadata.name == "builtin-registry-auth") | .data.".dockerconfigjson")' \
+                  "${GITPOD_OBJECTS}/templates/gitpod.yaml" \
+                  | base64 -d \
+                  > /tmp/currentconfig.json
+
+                DOCKER_CONFIG='{{repl ConfigOptionData "reg_docker_config" | Base64Encode }}'
+                echo "${DOCKER_CONFIG}" | base64 -d  > /tmp/userconfig.json
+                export REGISTRY_SECRET=$(jq -s '.[0] * .[1]' /tmp/userconfig.json /tmp/currentconfig.json | base64 -w 0)
+
+                echo "Gitpod: update the in-cluster registry secret"
+                yq eval-all --inplace '(select(.kind == "Secret" and .metadata.name == "builtin-registry-auth") | .data.".dockerconfigjson") |= env(REGISTRY_SECRET)' \
+                  "${GITPOD_OBJECTS}/templates/gitpod.yaml"
+              fi
+
               echo "Gitpod: Escape any Golang template values"
               sed -i -r 's/(.*\{\{.*)/{{`\1`}}/' "${GITPOD_OBJECTS}/templates/gitpod.yaml"
 

install/kots/manifests/kots-config.yaml

@@ -44,6 +44,11 @@ spec:
             - name: s3
               title: S3
 
+        - name: reg_docker_config
+          title: Registry credentials
+          type: file
+          help_text: docker [config json file](https://docs.docker.com/engine/reference/commandline/cli/#sample-configuration-file) used to access private registries, containing images specifically for the workspace image builds.
+
         # S3 help_text
         - name: reg_incluster_storage_s3_region
           title: Storage region