Dokploy Upgrade

Dokploy Upgrade

Upgrade a Dokploy PaaS instance running in Docker Swarm on a VPS.

Triggers

• "upgrade dokploy"
• "update dokploy"
• "dokploy version upgrade"
• "升级 dokploy"

Required Inputs

• SSH alias for the target host (e.g. shuttleup, otamatone)
• Optional: specific target version. Resolve and pin a release tag before updating; do not use the mutable latest image tag for a production upgrade.

Procedure

1. Determine current version

ssh <host> "docker service inspect dokploy --format '{{.Spec.TaskTemplate.ContainerSpec.Image}}'"

Extract the tag (e.g. v0.28.8).

2. Check latest version

# Web search: "dokploy latest version release github"
# Or fetch the GitHub releases page:
# https://github.com/Dokploy/dokploy/releases

Compare current vs latest. If already latest, stop and report.

3. Review breaking changes

Fetch the release notes for every release between the installed and target versions, including patch releases. Look for:

• Database migrations
• Breaking config changes
• Required manual steps

Report any concerns to the user before proceeding.

4. Pre-flight health check

ssh <host> "docker service ls --format '{{.Name}}\t{{.Replicas}}\t{{.Image}}'"

Every service's running replica count must equal its desired replica count. Do not assume 1/1: applications can intentionally use more replicas. Stop if this command prints a service:

ssh <host> "docker service ls --format '{{.Name}} {{.Replicas}}' | awk '{split(\$2, replicas, \"/\"); if (replicas[1] != replicas[2]) print}'"

Also check node availability:

ssh <host> "docker node ls --format '{{.Hostname}}\t{{.Status}}\t{{.Availability}}'"

Check that the control-plane replacement has adequate local headroom:

ssh <host> "df -h /; free -h; swapon --show"

Record the current Dokploy image tag before continuing. It is the rollback target.

5. Run the upgrade

To latest (only when an exact release tag is not required):

ssh <host> "curl --fail --silent --show-error --location https://dokploy.com/install.sh | sh -s update"

To a specific version:

ssh <host> "export DOKPLOY_VERSION=<target-version> && curl --fail --silent --show-error --location https://dokploy.com/install.sh | sh -s update"

Use the specific-version form for production. The script pulls the new image and runs docker service update --image .... It can return before the replacement task is fully running, so it is not the completion signal.

6. Handle "host-mode port already in use"

Dokploy publishes port 3000 in host mode. During docker service update, Swarm must stop the old container before starting the new one. The update output will show repeated:

overall progress: 0 out of 1 tasks
1/1: no suitable node (host-mode port already in use on 1 node)

This is normal. The old container eventually releases the port and the new one starts. Wait for the command to complete, then poll for task convergence — do not treat the command return as proof of a healthy upgrade.

If it genuinely stalls (more than ~2 minutes of the same message), check:

ssh <host> "docker service inspect dokploy --format '{{.UpdateStatus.State}} {{.UpdateStatus.Message}}'"

• updating → still in progress, keep waiting
• completed → done
• paused / rollback → problem, investigate

7. Post-upgrade verification

# Wait up to two minutes for the exact image and a running Dokploy task.
ssh <host> '
  set -e
  for attempt in $(seq 1 24); do
    image=$(docker service inspect dokploy --format "{{.Spec.TaskTemplate.ContainerSpec.Image}}")
    replicas=$(docker service ls --format "{{.Name}} {{.Replicas}}" | sed -n "s/^dokploy //p")
    state=$(docker service ps dokploy --no-trunc --format "{{.CurrentState}}" | head -1)
    if [ "$image" = "dokploy/dokploy:<target-version>" ] && [ "$replicas" = "1/1" ] && printf "%s" "$state" | grep -q "^Running"; then
      exit 0
    fi
    sleep 5
  done
  echo "Dokploy did not converge within two minutes" >&2
  exit 1
'

# Verify the panel and every Swarm service.
ssh <host> "curl --fail --silent --show-error --max-time 10 --output /dev/null http://127.0.0.1:3000/"
ssh <host> "docker service ls --format '{{.Name}} {{.Replicas}}' | awk '{split(\$2, replicas, \"/\"); if (replicas[1] != replicas[2]) print}'"

Expected: the exact image tag is running, the Dokploy task is Running, the panel returns HTTP 200, and the final service-convergence command prints nothing. Do not require Docker's healthy state: Dokploy may not define a container healthcheck.

8. Update host documentation

After a successful upgrade, update the host's markdown file in hosts/:

_Last verified <YYYY-MM-DD>. Dokploy upgraded <old> → <new>._

Commit the change.

Rollback

If the upgrade fails and Dokploy is broken:

ssh <host> "export DOKPLOY_VERSION=<old-version> && curl --fail --silent --show-error --location https://dokploy.com/install.sh | sh -s update"

Use the same --fail --silent --show-error --location curl options as the upgrade. Then rerun the full post-upgrade convergence and HTTP checks with <old-version> as the target. This re-pulls the old image and rolls the service back only after the old control plane has been verified.

Notes

• The install.sh script is the official upgrade path for both manual and automated Dokploy installations.
• Dokploy data lives in Docker volumes (dokploy-postgres, dokploy-redis) and survives image updates. No backup step is strictly required for minor upgrades, but a docker volume snapshot is prudent for major jumps.
• Traefik (dokploy-traefik) and the database containers (dokploy-postgres, dokploy-redis) are not updated by this process — only the dokploy service itself.
• The upgrade causes a brief downtime (~10-30s) while the old container stops and the new one starts.