sshca: Deploy SSH CA service

[sshca] is a simple web service I wrote to automatically create signed
SSH certificates for hosts' public keys.  It authenticates hosts by
their machine UUID, which it can find using the libvirt API.

[sshca]: https://git.pyrocufflink.net/dustin/sshca

argocd/applications/sshca.yaml

@@ -0,0 +1,13 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: sshca
+  namespace: argocd
+spec:
+  destination:
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    path: sshca
+    repoURL: https://git.pyrocufflink.blue/infra/kubernetes.git
+    targetRevision: master