Troubleshooting argocd#
Fixing a corrupt git index#
The Git index for the cloned repository that controls the Argo CD apps is corrupted if an Argo CD app shows the following error:
rpc error: code = Internal desc = Failed to fetch default: `git fetch origin --tags --force --prune` failed exit status 128: fatal: .git/index: index file smaller than expected
The Git repository needs to be removed and re-created by following these steps:
Find the
argocd-repo-server
pod and grep the logs:pod=$(kubectl get pods -n argocd -l app.kubernetes.io/name=argocd-repo-server | grep argocd | awk '{print $1}') kubectl logs -n argocd $pod | grep -B1 "index file smaller than expected" | grep -B1 "execID"
In that grep, find the
dir
field. For example:{"dir":"/tmp/_argocd-repo/35fe76f8-488a-4871-baaa-5f81d81331b1","execID":"a98af","level":"info","msg":"git fetch origin --tags --force --prune","time":"2023-06-13T18:48:12Z"} {"execID":"a98af","level":"error","msg":"`git fetch origin --tags --force --prune` failed exit status 128: fatal: .git/index: index file smaller than expected","time":"2023-06-13T18:48:12Z"}
Exec into the repo server pod:
kubectl exec -it -n argocd $pod -- /bin/bash
Using the directory found from the logs, execute:
rm /path/from/log/.git/index
The system will refresh itself automatically, so all the needs to be done further is wait and see if the error clears.