uninstall.sh — remove the stack

Default uninstall is non-destructive: services stop, unit files / binaries / installer payload / nginx vhost / journald drop-in / firewall ports / managed /etc/hosts block all go. Mongo, VictoriaMetrics, Grafana data + secrets + TLS material are preserved unless you opt in via the matching --purge* flag.

Single node (this machine only)

curl -fsSL https://raw.githubusercontent.com/CloudNativeWorks/elchi-archive/main/deploy/standalone/get.sh \
  | sudo bash -s -- --uninstall --yes-i-mean-it

Whole cluster — fan out from M1

curl -fsSL https://raw.githubusercontent.com/CloudNativeWorks/elchi-archive/main/deploy/standalone/get.sh \
  | sudo bash -s -- --uninstall --all-nodes --yes-i-mean-it

Reads /etc/elchi/nodes.list on M1, SSHes into every M2..Mn using the SSH credentials saved at install time, and runs the local uninstall on each. Order is reverse-by-design (Mn first, M1 last) so shared state on M1 is dropped only after the dependents are gone. Add --continue-on-error if you want partial-cluster uninstall to finish all reachable nodes instead of aborting on the first SSH failure.

Wipe everything (data + packages + secrets + SSH bootstrap material)

curl -fsSL https://raw.githubusercontent.com/CloudNativeWorks/elchi-archive/main/deploy/standalone/get.sh \
  | sudo bash -s -- --uninstall --all-nodes --purge-all --yes-i-mean-it

--purge-all is destructive and irreversible

Drops Mongo + VictoriaMetrics + Grafana + nginx packages, deletes /var/lib/{mongodb,grafana,elchi}, removes the cluster SSH key + known_hosts pin + our authorized_keys entry, and clears the CA we added to the system trust store. Combine with --all-nodes only when you genuinely want a clean slate across the whole fleet.

Uninstall flags

Flag	Description
--purge	Wipe /etc/elchi, /var/lib/elchi, /var/log/elchi, /opt/elchi, system trust-store anchors, and SSH bootstrap material.
--purge-mongo	Also remove mongo packages + /var/lib/mongodb + repo files. Implies --purge.
--purge-vm	Wipe VictoriaMetrics data dir.
--purge-grafana	Remove grafana package + /var/lib/grafana + repo files.
--purge-nginx	Remove nginx package + restore the original nginx.conf backup.
--purge-all	All purge flags above.
--all-nodes	Fan out to every node from /etc/elchi/nodes.list (M1 last, in reverse, so shared state is dropped last).
--continue-on-error	Don't abort on per-node failure; collect errors and print a summary.
--ssh-user / --ssh-key / --ssh-port	Override persisted SSH credentials.
--yes-i-mean-it	Skip the destructive-action confirmation. Required for --non-interactive purge.
-h | --help	Usage banner.