Add support for private repo deployments via CLI

A normal non-private deployment:

    ./pattern.sh make show
    helm template common/operator-install/ --name-template multicloud-gitops -f values-global.yaml --set main.git.repoURL="https://github.com/mbaldessari/multicloud-gitops.git" --set main.git.revision=private-repo-cli
    ...
    apiVersion: gitops.hybrid-cloud-patterns.io/v1alpha1
    kind: Pattern
    metadata:
      name: multicloud-gitops
      namespace: openshift-operators
    spec:
      clusterGroupName: hub
      gitSpec:
        targetRepo: https://github.com/mbaldessari/multicloud-gitops.git
        targetRevision: private-repo-cli
      gitOpsSpec:
        operatorChannel: gitops-1.8
        operatorSource: redhat-operators
      multiSourceConfig:
        enabled: true

When we set the TOKEN_SECRET AND TOKEN_NAMESPACE env variables:

    ./pattern.sh make TOKEN_SECRET=foo TOKEN_NAMESPACE=bar show
    helm template common/operator-install/ --name-template multicloud-gitops -f values-global.yaml --set main.tokenSecret=foo --set main.tokenSecretNamespace=bar --set main.git.repoURL="git@github.com:mbaldessari/multicloud-gitops.git" --set main.git.revision=private-repo-cli
    ...
    apiVersion: gitops.hybrid-cloud-patterns.io/v1alpha1
    kind: Pattern
    metadata:
      name: multicloud-gitops
      namespace: openshift-operators
    spec:
      clusterGroupName: hub
      gitSpec:
        targetRepo: git@github.com:mbaldessari/multicloud-gitops.git
        targetRevision: private-repo-cli
      gitOpsSpec:
        operatorChannel: gitops-1.8
        operatorSource: redhat-operators
      multiSourceConfig:
        enabled: true
      tokenSecret: foo
      tokenSecretNamespace: bar

In the latter case we do not rewrite the URL as it might an ssh-based
one.

Author: mbaldessari

Makefile

@@ -28,7 +28,18 @@ ifneq ("$(wildcard $(UUID_FILE))","")
 	UUID_HELM_OPTS := --set main.analyticsUUID=$(UUID)
 endif
 
-HELM_OPTS=-f values-global.yaml --set main.git.repoURL="$(TARGET_REPO)" --set main.git.revision=$(TARGET_BRANCH) $(TARGET_SITE_OPT) $(UUID_HELM_OPTS) $(EXTRA_HELM_OPTS)
+# Set the secret name *and* its namespace when deploying from private repositories
+# The format of said secret is documented here: https://argo-cd.readthedocs.io/en/stable/operator-manual/declarative-setup/#repositories
+TOKEN_SECRET ?=
+TOKEN_NAMESPACE ?=
+
+ifeq ($(TOKEN_SECRET),)
+  HELM_OPTS=-f values-global.yaml --set main.git.repoURL="$(TARGET_REPO)" --set main.git.revision=$(TARGET_BRANCH) $(TARGET_SITE_OPT) $(UUID_HELM_OPTS) $(EXTRA_HELM_OPTS)
+else
+  # When we are working with a private repository we do not escape the git URL as it might be using an ssh secret which does not use https://
+  TARGET_CLEAN_REPO=$(shell git ls-remote --get-url --symref $(TARGET_ORIGIN))
+  HELM_OPTS=-f values-global.yaml --set main.tokenSecret=$(TOKEN_SECRET) --set main.tokenSecretNamespace=$(TOKEN_NAMESPACE) --set main.git.repoURL="$(TARGET_CLEAN_REPO)" --set main.git.revision=$(TARGET_BRANCH) $(TARGET_SITE_OPT) $(UUID_HELM_OPTS) $(EXTRA_HELM_OPTS)
+endif
 
 
 ##@ Pattern Common Tasks