chore: init with docs (bootstrap)

docs/antora.yml

@@ -0,0 +1,6 @@
+name: wrenix-flux
+title: "WrenIX's FluxCD (charts)"
+version:
+  v(?<version>+({0..9}).+({0..9}).+({0..9})).*: $<version>
+  main: latest
+

docs/modules/ROOT/pages/index.adoc

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+= WrenIX's FluxCD-Repository
+
+== Install FluxCD into a cluster
+
+Here i install it with connection to codeberg:
+  - the path is just for the cluster
+  - the url a repo where fluxcd (in given path) install itself and monitor
+  - i just install my needed components (i skip notification-controller, i prefer prometheus and alerting)
+
+[source,bash]
+----
+flux bootstrap git --components source-controller,kustomize-controller,helm-controller --path=<path> --url ssh://git@codeberg.org/wrenix/<repo>.git
+----
+
+=== Secure with verify
+
+Afterwards we need to setup a verification with GPG, so that nobody else could commit any workload in your cluster.
+That is because i select an public git hosting (here codeberg), i trust them but maybe it get compromised one time.
+
+in your repository the flux cli has created an `<path>/flux-system/kustomization.yaml`, we will edit them.
+
+[source,patch]
+----
+ apiVersion: kustomize.config.k8s.io/v1beta1
+ kind: Kustomization
+ resources:
+  - gotk-components.yaml
+  - gotk-sync.yaml
+
++patches:
++  - target:
++      kind: GitRepository
++      name: flux-system
++    patch: |-
++      apiVersion: source.toolkit.fluxcd.io/v1
++      kind: GitRepository
++      metadata:
++        name: flux-system
++      spec:
++        verify: <1>
++          mode: HEAD
++          secretRef:
++            name: gpg-publickey
++
++generatorOptions:
++  disableNameSuffixHash: true <2>
++
++secretGenerator:
++  - name: gpg-publickey <3>
++    namespace: flux-system
++    files:
++      - gpg-publickey/wrenix.gpg <4>
+----
+<1> add verify, that only HEAD git commit with valide gpg signature is used
+<2> on the next generate, do not add hash
+<3> generate kubernetes Secret with the name `gpg-publickey` which is used in the patched GitRepository, see <1>
+<4> Add list of valide gpg key files