jmagar Dozzle
Real-time Docker container log viewer.
How to call it
Use Dozzle's HTTP API directly for ad-hoc checks, or the native Dozzle MCP
server when the MCP endpoint is enabled. Do not use mcp__lab__dozzle,
lab dozzle, labby dozzle, or a Lab command-wrapper MCP entry; those paths
are stale wrappers for this service.
Configuration
Read connection values from the environment when available:
DOZZLE_URL # base URL, for example http://host:8080
DOZZLE_SESSION_COOKIE # optional raw Cookie header value
DOZZLE_ENABLE_MCP=true # required on the Dozzle container for /api/mcp
If the shell environment is not already populated, ~/.lab/.env may contain
these values. Source it only inside a subshell and suppress source output.
Security Model
Dozzle's local web API routes are implementation details, not a stable public REST contract. Use them as best-effort operational probes and keep calls read-only unless the user explicitly asks for a mutating action.
Check the root config__json for authProvider, enabled shell/actions, and
host inventory. If authProvider is none, access control is provided only by
the surrounding network/proxy boundary. Treat direct Tailnet or LAN URLs as
bypasses around Authelia/forward-proxy auth unless ACLs restrict them.
Dozzle can reach Docker hosts, and Docker socket access is highly privileged. If shell/actions/download are enabled, prefer an authenticated/proxied path and do not invoke shell or action endpoints without explicit user intent.
Auth
Dozzle may run with no auth or with a browser session cookie. Probe without a
cookie first when DOZZLE_SESSION_COOKIE is unset. When the cookie is set, pass
it as a Cookie header through stdin config, not as a command-line argument:
(
set +x
set -a; . ~/.lab/.env >/dev/null 2>&1 || true; set +a
/usr/bin/curl -fsS --config - "$DOZZLE_URL/api/version" <<EOF
header = "Cookie: ${DOZZLE_SESSION_COOKIE}"
EOF
)
Never echo the cookie or include it in logs. If a request returns 401 or
403, help the user refresh the browser session cookie without pasting it into
chat.
Common API Checks
Use /usr/bin/curl if shell startup or sourced env files alter PATH.
(
set +x
set -a; . ~/.lab/.env >/dev/null 2>&1 || true; set +a
/usr/bin/curl -fsS "$DOZZLE_URL/api/version"
/usr/bin/curl -fsS "$DOZZLE_URL/" | sed -n '/config__json/,/<\\/script>/p'
)
For endpoint details, safe cookie helpers, and container/log workflows, read
references/api.md.
For configuring Dozzle auth providers or MCP, read
references/auth-mcp.md.
When NOT to use this skill
- The user is asking about a different lab service - load that service's skill instead.
- The user is asking about Lab MCP, Lab CLI internals, or gateway behavior - use the Lab/operator skill instead.