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helm mode install: Add --dry-run / --dry-run-helm-values flags #1502

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merged 1 commit into from
Apr 11, 2023
Merged

helm mode install: Add --dry-run / --dry-run-helm-values flags #1502

merged 1 commit into from
Apr 11, 2023

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michi-covalent
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  • --dry-run flag writes resources to stdout without actually installing them.
  • --dry-run-helm-values flag writes non-default Helm values to stdout without performing the actual installation.

@michi-covalent
helm mode install: Add --dry-run / --dry-run-helm-values flags
bbeb255 
- --dry-run flag writes resources to stdout without actually installing
  them.
- --dry-run-helm-values flag writes non-default Helm values to stdout
  without performing the actual installation.

Signed-off-by: Michi Mutsuzaki <michi@isovalent.com>
@michi-covalent michi-covalent temporarily deployed to ci April 11, 2023 21:58 — with GitHub Actions Inactive
@michi-covalent
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sample output:

% ./cilium install --dry-run
---
# Source: cilium/templates/cilium-agent/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: "cilium"
  namespace: kube-system
---
# Source: cilium/templates/cilium-operator/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: "cilium-operator"
  namespace: kube-system
---
...

% ./cilium install --dry-run-helm-values --helm-set cluster.name=michi
cluster:
  name: michi
ipam:
  mode: kubernetes
operator:
  replicas: 1
serviceAccounts:
  cilium:
    name: cilium
  operator:
    name: cilium-operator
tunnel: vxlan

@michi-covalent michi-covalent marked this pull request as ready for review April 11, 2023 22:01
@michi-covalent michi-covalent requested a review from a team as a code owner April 11, 2023 22:01
asauber
asauber approved these changes Apr 11, 2023
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internal/cli/cmd/install.go
@@ -262,6 +263,10 @@ cilium install --context kind-cluster1 --helm-set cluster.id=1 --helm-set cluste
`,
RunE: func(cmd *cobra.Command, args []string) error {
params.Namespace = namespace
// Don't log anything if it's a dry run so that the dry run output can easily be piped to other commands.
if params.DryRun || params.DryRunHelmValues {
params.Writer = io.Discard
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How about io.Stderr?

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yeah that's another option. still a bit too noisy for my taste 👀

@michi-covalent michi-covalent merged commit dc83a55 into master Apr 11, 2023
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@michi-covalent michi-covalent deleted the pr/michi/dryrun branch April 11, 2023 22:40
@ZhongRuoyu ZhongRuoyu mentioned this pull request Apr 24, 2023
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@asauber asauber asauber approved these changes

@christarazi christarazi christarazi approved these changes

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@michi-covalent @asauber @christarazi