2026-01-22 13:19:16 -05:00
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#!/usr/bin/env bash
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# shellcheck shell=bash
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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##@Version : 202601221300-git
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# @@Author : CasjaysDev
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# @@Contact : CasjaysDev <docker-admin@casjaysdev.pro>
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# @@License : MIT
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# @@Copyright : Copyright 2026 CasjaysDev
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# @@Created : Wed Jan 22 01:00:00 PM EST 2026
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# @@File : 01-dockerd.sh
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# @@Description : Init script to start Docker daemon (optional)
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# @@Changelog : newScript
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# @@TODO : Better documentation
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# @@Other :
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# @@Resource :
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# @@Terminal App : no
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# @@sudo/root : yes
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# shellcheck disable=SC1001,SC1003,SC2001,SC2003,SC2016,SC2031,SC2090,SC2115,SC2120,SC2155,SC2199,SC2229,SC2317,SC2329
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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2026-06-04 14:38:05 -04:00
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SCRIPT_NAME="${0##*/}"
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2026-01-22 13:19:16 -05:00
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SCRIPT_PID_FILE="/run/init.d/$SCRIPT_NAME.pid"
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# Set env/config variables
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DOCKER_SOCKET="${DOCKER_SOCKET:-}"
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# Check if Docker socket is already available from host
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if [ -S "/var/run/docker.sock" ]; then
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# Check if it's actually writable (not just mounted)
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if docker info >/dev/null 2>&1; then
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echo "Using existing Docker daemon from host socket"
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exit 0
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fi
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fi
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# Ensure we're running with proper privileges for DinD
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if [ ! -w "/var/run" ]; then
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echo "ERROR: Cannot start Docker-in-Docker daemon - insufficient privileges"
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echo "This container requires --privileged flag for full Docker-in-Docker support"
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echo "Example: docker run --privileged ..."
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exit 1
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# Create required directories for Docker
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mkdir -p /var/lib/docker 2>/dev/null || true
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mkdir -p /var/run 2>/dev/null || true
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# Check if Docker daemon is already running
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if [ -f "/var/run/docker.pid" ]; then
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pid=$(cat /var/run/docker.pid)
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if kill -0 "$pid" 2>/dev/null; then
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echo "Docker daemon is already running (PID: $pid)"
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exit 0
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fi
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# Write PID file
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echo $$ >"$SCRIPT_PID_FILE"
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# Start Docker daemon in DinD mode
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echo "Starting Docker-in-Docker (DinD) daemon..."
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echo "Full Docker environment initializing..."
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# Start dockerd in the background
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dockerd \
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--host=unix:///var/run/docker.sock \
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--storage-driver=vfs \
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>/data/logs/dockerd.log 2>&1 &
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DOCKERD_PID=$!
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echo "$DOCKERD_PID" > /var/run/docker.pid
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# Wait for Docker daemon to be ready
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echo "Waiting for Docker daemon to be ready..."
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for i in {1..30}; do
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if docker info >/dev/null 2>&1; then
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echo "Docker daemon is ready (PID: $DOCKERD_PID)"
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exit 0
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fi
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sleep 1
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done
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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echo "ERROR: Docker daemon failed to start within 30 seconds"
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exit 1
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# - - - - - - - - - - - - - - - - - - - - - - - - -
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# ex: ts=2 sw=2 et filetype=sh
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