forked from suse-edge/Factory
101 lines
2.7 KiB
Markdown
101 lines
2.7 KiB
Markdown
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# Prerequisites
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There are two dependencies that are not managed through the metal3 chart because are related to applications that have a cluster-wide scope: `cert-manager` and a LoadBalancer Service provider such as `metallb` or `kube-vip`.
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## Cert Manager
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In order to successfully deploy metal3 the cluster must have already installed the `cert-manager`.
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You can install it through `helm` with:
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```bash
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helm repo add jetstack https://charts.jetstack.io
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helm repo update
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helm install \
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cert-manager jetstack/cert-manager \
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--namespace cert-manager \
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--create-namespace \
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--set installCRDs=true
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```
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, or via `kubectl` with:
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```bash
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kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.11.1/cert-manager.yaml
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```
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## MetalLB (Optional)
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Ironic currently requires a staticIP address and MetalLB is one option to achieve that.
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1. If K3s is used as Kubernetes distribution, then it should be started with `--disable=servicelb` flag. Ref https://metallb.universe.tf/configuration/k3s/
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2. Find 1 free IP address in the network.
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3. Install `MetalLB` through `helm` with:
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```bash
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helm repo add suse-edge https://suse-edge.github.io/charts
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helm install \
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metallb suse-edge/metallb \
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--namespace metallb-system \
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--create-namespace
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```
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4. Provide the IP pool configuration with:
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```bash
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export STATIC_IRONIC_IP=<STATIC_IRONIC_IP>
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cat <<-EOF | kubectl apply -f -
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apiVersion: metallb.io/v1beta1
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kind: IPAddressPool
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metadata:
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name: ironic-ip-pool
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namespace: metallb-system
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spec:
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addresses:
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- ${STATIC_IRONIC_IP}/32
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serviceAllocation:
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priority: 100
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serviceSelectors:
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- matchExpressions:
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- {key: app.kubernetes.io/name, operator: In, values: [metal3-ironic]}
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EOF
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cat <<-EOF | kubectl apply -f -
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apiVersion: metallb.io/v1beta1
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kind: L2Advertisement
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metadata:
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name: ironic-ip-pool-l2-adv
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namespace: metallb-system
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spec:
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ipAddressPools:
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- ironic-ip-pool
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EOF
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```
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5. Create new values.yaml file that will override some of the default properties:
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```bash
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TMP_DIR=$(mktemp -d)
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cat > ${TMP_DIR}/values.yaml << EOF
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global:
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ironicIP: "<STATIC_IRONIC_IP>"
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EOF
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```
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# Install
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```bash
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helm install \
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metal3 suse-edge/metal3 \
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--namespace metal3-system \
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--create-namespace
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-f ${TMP_DIR}/values.yaml
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```
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# How to upgrade the chart
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1. Run `helm dependency update .` in this chart to download/update the dependent charts.
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2. Identify the appropriate subchart values settings and create an appropriate override values YAML file.
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* Ensure that the relevant ironic and baremetal-operator settings match.
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3. Install the chart using a command like the following:
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```console
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$ helm upgrade heavy-metal . --namespace metal-cubed --create-namespace --install --values ~/overrides.yaml
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```
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