add fluxcd

fluxcd/install.md

@@ -0,0 +1,36 @@
+### Installation or update of Fluxcd
+
+- The Gitlab PAT Token is the one from Fluxcd.
+```bash
+# Binary configuration
+export FLUX_VERSION=X.X.X
+curl -s https://fluxcd.io/install.sh | bash
+. <(flux completion zsh)
+
+# Define right kubeconfig
+<ALIAS_COMMAND>
+
+# FluxCD installation with extras components
+flux bootstrap gitlab --components-extra=image-reflector-controller,image-automation-controller \
+--hostname=gitlab.example.com \
+--token-auth \
+--owner=infrastructure/k8s \
+--repository=fluxcd \
+--branch=main \
+--path=clusters/<NAME>
+```
+
+### Delete Fluxcd from cluster
+
+```bash
+# Define right kubeconfig
+<ALIAS_COMMAND>
+
+# Delete flux in a cluster safely
+flux uninstall --keep-namespace=true
+```
+
+### Token to pull images from Gitlab registry
+
+- Create a token with read_api and read_repository permission for the sa_kubernetes user.
+- Create/update it in the corresponding secret in the kubernetes namespaces.