Clone this repo and give it a meaningful name:
$ git clone [email protected]:getupcloud/managed-cluster.git managed-cluster-evilcorp
^^^^^^^^^^^^^^^^^^^^^^^^
$ cd managed-cluster-evilcorpBootstrap an initial config for a new cluster named production:
$ ./managed-cluster createAll cluster configs will be stored inside the directory structure ./clusters/${CLUSTER_NAME}/${CLUSTER_TYPE}.
We are now ready to create our cluster. Let's start the installer container.
$ ./managed-cluster startThere are two volumes mapped from local host into container's filesystem:
./clusters/${CLUSTER_NAME}/${CLUSTER_TYPE}->/cluster./->/repo
A new /cluster/terraform.tfvars will be generated in case none is found.
You will be asked to fill in non-default values. After that, if you need to update/change values from terraform.tfvars simply run terraform-edit
or vim /cluster/terraform.tfvars.
In order to re-generate
terraform.tfvars, runterraform-setup -f. Any manually-edited values in this file will be lost.
We can now create our cluster using terraform. Run this to init, verify, apply and check the new cluster:
$ terraform-apply
After terraform finishes, you will be asked to create a github repo and push this repo into it.
Flux will be installed and configured to sync from ${GITHUB_REPO}/clusters/${CLUSTER_NAME}/${CLUSTER_TYPE}/manifests/cluster/kustomization.yaml.
In order to update any config, simply terraform-edit and then terraform-apply.
You are free to edit/add/remove anything from /cluster (or clusters/${CLUSTER_NAME}/${CLUSTER_TYPE} if you are outside of the container).
This is the complete workflow (created in https://asciiflow.com)
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ ################## ################## │
│ # CREATE CLUSTER # # UPDATE CLUSTER # │
│ ################## ################## │
│ │ │ │
│ │ │ │
│ │ │ │
│ ▼ ▼ │
│ ┌────────────────────────┐ ┌──────────────────────────┐ │
│ │ managed-cluster create │ │ git clone $remote-origin │ │
│ └───────────┬────────────┘ └────────────┬─────────────┘ │
│ │ │ │
│ │ │ │
│ ▼ │ │
│ ┌───────────────────────┐ ▼ │
│ │ managed-cluster start │◄────────────┐ ┌──────────────────────────────┐* │
│ └───────────┬───────────┘ │ │ managed-cluster remote-setup │ │
│ │ │ └──────────────┬───────────────┘ │
│ │ │ │ │
│ ┌──────────────┼───────────────┐ │ │ │
│ │ container │ │ │ │ ┌─────────────────────────┐ │
│ │ ▼ │ │ ▼ ┌──┤ git pull origin │ │
│ │ ┌─────────────────┐* │ │ ┌───────────────────────────┐ │ └─────────────────────────┘ │
│ │ │ terraform-setup │ │ │ │ managed-cluster repo-pull │◄──────┤ │
│ │ └────────┬────────┘ │ │ └────────────┬──────────────┘ │ ┌────────────────────────────┐ │
│ │ │ │ │ │ └──┤ git fetch upstream │ │
│ │ │ │ │ │ └────────────────────────────┘ │
│ │ │ │ │ │ │
│ │ ▼ │ │ │ │
│ │ ┌────────────────┐ │ │ │ ┌────────────────────────────┐ │
│ │ │ terraform-edit │ │ │ ▼ ┌──┤ git fetch upstream │ │
│ │ └────────┬───────┘ │ │ ┌────────────────────────┐ │ └────────────────────────────┘ │
│ │ │ │ │ │ managed-cluster update │◄──────────┤ │
│ │ │ │ │ └──────────┬─────────────┘ │ ┌───────────────────────┐ │
│ │ │ │ │ │ └──┤ git merge $latest-tag │ │
│ │ ▼ │ │ │ └───────────────────────┘ │
│ │ ┌──────────────────┐ │ │ │ │
│ │ │ terraform-apply │ │ │ │ │
│ │ └──────────────────┘ │ │ │ │
│ │ │ │ │ ┌──────────────────────────────┐ │
│ └──────────────────────────────┘ │ ▼ ┌──┤ rsync templates/ -> /cluster │ │
│ │ ┌───────────────────────────────┐ │ └──────────────────────────────┘ │
│ └───────┤ managed-cluster sync-template │◄───┤ │
│ └───────────────────────────────┘ │ ┌────────────────────────────────────┐ │
│ └──┤ rsync templates/$type/ -> /cluster │ │
│ └────────────────────────────────────┘ │
│ * required only once │
└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
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