Added pregenerated secrets

README.md

@@ -32,10 +32,16 @@ The Helm chart will create the following named volumes:
 ## Configuring the Cluster
 
 All config files in `slurm-cluster-chart/files` will be mounted into the container to configure their respective services on startup. The `authorized_keys` file contains authorised public keys for the user `rocky`, add your public key to access the cluster. Note that changes to these files will not all be propagated to existing deployments (see "Reconfiguring the Cluster").
-Additional parameters can be found in the `values.yaml` file, which will be applied on a Helm chart deployment. Note that some of these values, such as `encodedMungeKey` will also not propagate until the cluster is restarted (see Reconfiguring the Cluster).
+Additional parameters can be found in the `values.yaml` file, which will be applied on a Helm chart deployment. Note that some of these values, such as `encodedMungeKey` will also not propagate until the cluster is restarted (see "Reconfiguring the Cluster").
 
 ## Deploying the Cluster
 
+On initial deployment ONLY, run
+```console
+./generate-secrets.sh
+```
+This generates a set of secrets. If these need to be regenerated, see "Reconfiguring the Cluster"
+
 After configuring `kubectl` with the appropriate `kubeconfig` file, deploy the cluster using the Helm chart:
 ```console
 helm install <deployment-name> slurm-cluster-chart
@@ -74,8 +80,27 @@ normal*      up 5-00:00:00      2   idle c[1-2]
 
 ## Reconfiguring the Cluster
 
+### Changes to config files
+
 To guarantee changes to config files are propagated to the cluster, use
 ```console
 kubectl rollout restart deployment <deployment-names>
 ```
-Generally restarts to `slurmd`, `slurmctld`, `login` and `slurmdbd` will be required
+Generally restarts to `slurmd`, `slurmctld`, `login` and `slurmdbd` will be required
+
+### Changes to secrets
+
+Regenerate secrets by rerunning
+```console
+./generate-secrets.sh
+```
+Some secrets are persisted in volumes, so cycling them requires a full teardown and reboot of the volumes and pods which these volumes are mounted on. Run
+```console
+kubectl delete deployment mysql
+kubectl delete pvc var-lib-mysql
+helm upgrade <deployment-name> slurm-cluster-chart
+```
+and then restart the other dependent deployments to propagate changes:
+```console
+kubectl rollout restart deployment slurmd slurmctld login slurmdbd
+```

generate-secrets.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+kubectl create secret generic database-auth-secret \
+--dry-run=client \
+--from-literal=password=$(tr -dc 'A-Za-z0-9' </dev/urandom | head -c 32) \
+-o yaml | \
+kubectl apply -f -
+
+kubectl create secret generic munge-key-secret \
+--dry-run=client \
+--from-literal=munge.key=$(dd if=/dev/urandom bs=1 count=1024 2>/dev/null | base64 -w 0) \
+-o yaml | \
+kubectl apply -f -

slurm-cluster-chart/values.yaml

@@ -13,9 +13,6 @@ nfs:
 
 sqlImage: mariadb:10.10
 
-databaseAuthentication:
-  password: password
-
 databaseStorage: 100Mi
 
 encodedMungeKey: 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