Argo CD ssh_known_hosts file customization

The directory contains sample kustomize application which customizes /etc/ssh/ssh_known_hosts file in Argo CD. This is useful if you want to disable SSL cert validation for Git repositories connected using SSL urls:

• argocd-known-hosts-mounts.yaml - define merge patches which inject /etc/ssh/ssh_known_hosts file mount into all Argo CD deployments.
• argocd-known-hosts.yaml - defines ConfigMap which includes /etc/ssh/ssh_known_hosts file content.
• kustomization.yaml - Kustomize application which bundles stable version of Argo CD and apply argocd-known-hosts-mounts.yaml patches on top.

!!! note The /etc/ssh/ssh_known_hosts should include Git host on each Argo CD deployment as well as on a computer where argocd repo add is executed. After resolving issue #1514 only argocd-repo-server deployment has to be customized.

For the known_hosts file to work with custom repository port you have to obtain the public key using ssh-keyscan and hash the file before adding it to configmap, i.e.:

    ssh-keyscan -p 1234 git.repo.com > known_hosts
    ssh-keygen -Hf known_hosts
    cat known_hosts