Podman

Dozzle supports Podman through its Docker-compatible socket interface. Two known differences from Docker that affect setup: memory stats are often missing in rootless/Quadlet deployments (cgroup delegation), and Podman doesn't generate an engine-id. This guide covers standalone mode (local monitoring) and agent mode (remote monitoring via a central Dozzle server).

Deployment Options

Mode	Use Case	Setup Complexity
Standalone	Single host log viewing	Simple
Agent	Multi-host centralized monitoring	Moderate

Deployment Methods

Podman offers several launch approaches:

Method	Auto-start	Memory Stats	Healthchecks	Best For
CLI	Manual	✓	✓	Development
podman-compose	✗	✓	✗	Testing
Quadlet (systemd)	✓	✗*	✓	Production

*Memory stats are typically unavailable in rootless mode unless cgroup v2 memory delegation is enabled. See the FAQ at the bottom of this page.

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Standalone Mode

Run Dozzle as a standalone service to monitor local Podman containers.

Rootful Setup

For system-wide Podman daemon:

# Enable and start the Podman socket
sudo systemctl enable podman.socket
sudo systemctl start podman.socket

# Dozzle can connect via the Docker socket
podman run -v /run/podman/podman.sock:/var/run/docker.sock:ro \
  -p 3000:8080 \
  ghcr.io/amir20/dozzle:latest

Rootless Setup

Rootless Podman isolates containers to a user namespace:

# Start user-level socket (runs automatically with user session)
systemctl --user enable podman.socket
systemctl --user start podman.socket

# For a user named 'appuser', Dozzle can connect via:
podman run -v /run/user/$(id -u appuser)/podman/podman.sock:/var/run/docker.sock:ro \
  -p 3000:8080 \
  ghcr.io/amir20/dozzle:latest

Important: A Dozzle bound to one user's rootless socket only sees that user's containers. Other users' rootless containers live in separate namespaces and won't appear.

Quadlet Deployment

Quadlet enables systemd-native container management. Create a .container file at ~/.config/containers/systemd/dozzle.container:

[Unit]
Description=Dozzle Log Viewer
After=network-online.target
Wants=network-online.target

[Container]
Image=ghcr.io/amir20/dozzle:latest
PublishPort=3000:8080
Volume=/run/user/%U/podman/podman.sock:/var/run/docker.sock:ro

HealthCmd=/dozzle healthcheck
HealthInterval=5s
HealthTimeout=10s
HealthRetries=5
HealthStartPeriod=15s

[Service]
Restart=on-failure
RestartSec=10

[Install]
WantedBy=default.target

Enable and start:

systemctl --user daemon-reload
systemctl --user enable --now dozzle.service

For multi-user systems, drop the same file into each user's ~/.config/containers/systemd/ and pick a distinct host port per user (e.g. PublishPort=3001:8080). Each instance only sees that user's rootless containers.

Quadlet generates a systemd timer for healthchecks. `podman-compose` does not, so healthchecks won't run on a schedule there; trigger them manually with `podman healthcheck run NAME` if needed.

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Agent Mode

Run Dozzle as an agent on remote Podman hosts for centralized monitoring via a main Dozzle server. Agents communicate with the main server via gRPC.

Agent Setup

Prerequisites

• Open port 7007 on agent host
• Network connectivity between main server and agent

Start Dozzle Agent

Run Dozzle in agent mode on remote Podman hosts:

# Rootful agent
podman run -d \
  --name dozzle-agent \
  -v /run/podman/podman.sock:/var/run/docker.sock:ro \
  -p 7007:7007 \
  ghcr.io/amir20/dozzle:latest agent

# Rootless agent (for user 'appuser')
sudo -u appuser podman run -d \
  --name dozzle-agent \
  -v /run/user/$(id -u appuser)/podman/podman.sock:/var/run/docker.sock:ro \
  -p 7007:7007 \
  ghcr.io/amir20/dozzle:latest agent

Quadlet Agent Deployment

Create a .container file for the agent:

# dozzle-agent.container
[Unit]
Description=Dozzle Agent
After=network-online.target
Wants=network-online.target

[Container]
Image=ghcr.io/amir20/dozzle:latest
PublishPort=7007:7007
Volume=/run/user/%U/podman/podman.sock:/var/run/docker.sock:ro
Exec=agent

HealthCmd=/dozzle healthcheck
HealthInterval=5s
HealthTimeout=10s
HealthRetries=5
HealthStartPeriod=15s

[Service]
Restart=on-failure
RestartSec=10

[Install]
WantedBy=default.target

The Dozzle image's entrypoint is `/dozzle`, so `agent` goes in `Exec=` (the command), not `Entrypoint=`.

Enable and start:

systemctl --user daemon-reload
systemctl --user enable dozzle-agent.service
systemctl --user start dozzle-agent.service

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Main Server with Remote Agents

Configure the main Dozzle server to connect to agents on remote Podman hosts.

Server Configuration

Run the main Dozzle server with agent endpoints:

podman run -d \
  --name dozzle \
  -p 3000:8080 \
  ghcr.io/amir20/dozzle:latest \
  --agent "host1.example.com:7007" \
  --agent "host2.example.com:7007"

Or with environment variables:

podman run -d \
  --name dozzle \
  -e DOZZLE_REMOTE_AGENT="host1.example.com:7007,host2.example.com:7007" \
  -p 3000:8080 \
  ghcr.io/amir20/dozzle:latest

Quadlet Main Server with Agents

# dozzle-server.container
[Unit]
Description=Dozzle Server with Remote Agents
After=network-online.target
Wants=network-online.target

[Container]
Image=ghcr.io/amir20/dozzle:latest
PublishPort=3000:8080
Environment=DOZZLE_REMOTE_AGENT=host1.example.com:7007,host2.example.com:7007

HealthCmd=/dozzle healthcheck
HealthInterval=5s
HealthTimeout=10s
HealthRetries=5
HealthStartPeriod=15s

[Service]
Restart=on-failure
RestartSec=10

[Install]
WantedBy=default.target

`WantedBy=multi-user.target` only applies to system units. For `systemctl --user` units, use `default.target`.

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Additional Configuration

Engine-ID Setup

Podman doesn't create an engine-id like Docker. Create one to avoid "host not found" errors:

Using uuidgen

# Create directory if needed
sudo mkdir -p /var/lib/docker

# Generate UUID
sudo sh -c 'uuidgen > /var/lib/docker/engine-id'

# Verify
cat /var/lib/docker/engine-id

Using Ansible

- name: Create /var/lib/docker
  ansible.builtin.file:
    path: /var/lib/docker
    state: directory
    mode: "755"

- name: Create engine-id and derive UUID from hostname
  ansible.builtin.lineinfile:
    path: /var/lib/docker/engine-id
    line: "{{ hostname | to_uuid }}"
    create: true
    mode: "0644"
    insertafter: "EOF"

Clean up existing Dozzle deployments (stop container, remove volumes) before recreating with the engine-id in place.

FAQ

Memory Stats Missing in Rootless Mode

Memory stats are usually missing in rootless deployments because the memory cgroup controller isn't delegated to the user slice by default. Check what's delegated:

cat /sys/fs/cgroup/user.slice/user-$(id -u).slice/cgroup.controllers

If memory is not in the output, enable delegation via a drop-in:

sudo mkdir -p /etc/systemd/system/user@.service.d
sudo tee /etc/systemd/system/user@.service.d/delegate.conf <<'EOF'
[Service]
Delegate=cpu cpuset io memory pids
EOF
sudo systemctl daemon-reload

Then log out and back in (or reboot) for the user slice to pick up the new delegation. See the Podman rootless tutorial for details.

Healthchecks Reported as Unhealthy

podman-compose issue: Healthchecks are reported as unhealthy even though manual runs pass. This is a Podman behavior where healthchecks aren't automatically evaluated without a systemd timer (Quadlet generates one automatically).

Workaround with podman-compose:

# Manual healthcheck run
podman healthcheck run <container_id>

Quadlet: HealthCmd= takes a plain command line, not the Docker CMD [...] JSON form:

HealthCmd=/dozzle healthcheck

Older podman-compose (< 1.5.0) runs all healthchecks via sh, which doesn't exist in the Dozzle image. Update to a current version.

Cross-user Container Visibility

Rootless Podman can only access containers in the same user namespace. If running Dozzle as one user, it cannot see containers from another user's rootless session.

Solution: Either run Dozzle as the same user or use rootful mode.