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Makes the cleanup much less messy, allows us to use localhost:80 as local web server allowing multiple builds to run in parallel.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| #!/bin/bash | ||
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| export BUILD_DIR=${BUILD_DIR:-/usr/lib/build} | ||
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| cleanup_and_exit() { | ||
| test -z "$1" && set 0 | ||
| if test -n "$2" ; then | ||
| if test "$1" -ne 0 ; then | ||
| echo "$2" >&2 | ||
| else | ||
| echo "$2" | ||
| fi | ||
| fi | ||
| exit $1 | ||
| } | ||
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| BUILD_ROOT= | ||
| IS_UNSHARED= | ||
| KILL= | ||
| WEBSERVER= | ||
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| CONTAINERD_PID=0 | ||
| DOCKERD_PID=0 | ||
| WEBSERVER_PID=0 | ||
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| while test -n "$1" ; do | ||
| case "$1" in | ||
| --root) | ||
| BUILD_ROOT="$2" | ||
| shift 2 | ||
| ;; | ||
| --webserver) | ||
| WEBSERVER="$2" | ||
| shift 2 | ||
| ;; | ||
| --isunshared) | ||
| IS_UNSHARED=true | ||
| shift | ||
| ;; | ||
| --kill) | ||
| KILL=true | ||
| shift | ||
| ;; | ||
| *) | ||
| break | ||
| ;; | ||
| esac | ||
| done | ||
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| if test -n "$1" -o -z "$BUILD_ROOT" ; then | ||
| cleanup_and_exit 1 "Usage: startdockerd --root <buildroot>" | ||
| echo "Usage: startdockerd --root <buildroot>" | ||
| fi | ||
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| if test -n "$KILL" ; then | ||
| if test -e "$BUILD_ROOT/.startdockerd.pids" ; then | ||
| read CONTAINERD_PID DOCKERD_PID WEBSERVER_PID < $BUILD_ROOT/.startdockerd.pids | ||
| if test -n "$WEBSERVER_PID" -a "$WEBSERVER_PID" != 0 ; then | ||
| echo "Stopping local repository server" | ||
| kill "$WEBSERVER_PID" | ||
| fi | ||
| if test -n "$DOCKERD_PID" -a "$DOCKERD_PID" != 0 ; then | ||
| echo "Stopping docker daemon" | ||
| kill "$DOCKERD_PID" | ||
| fi | ||
| if test -n "$CONTAINERD_PID" -a "$CONTAINERD_PID" != 0 ; then | ||
| echo "Stopping container daemon" | ||
| kill "$CONTAINERD_PID" | ||
| fi | ||
| rm -f "$BUILD_ROOT/.startdockerd.pids" | ||
| fi | ||
| exit 0 | ||
| fi | ||
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| rm -f $BUILD_ROOT/.startdockerd.pids | ||
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| if test -z "$IS_UNSHARED" ; then | ||
| echo "Unsharing environment" | ||
| # unshare mounts and network | ||
| exec unshare -m -n $BUILD_DIR/startdockerd --isunshared --root "$BUILD_ROOT" --webserver "$WEBSERVER" "$@" | ||
| cleanup_and_exit 1 "exec unshare returned" | ||
| fi | ||
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| # load needed kernel modules | ||
| modprobe bridge br_netfilter | ||
| modprobe nf_nat | ||
| modprobe xt_conntrack | ||
| modprobe ip_tables | ||
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| # setup cgroups | ||
| if test "$BUILD_ROOT" != '/' ; then | ||
| test -d /sys/fs/cgroup || cleanup_and_exit 1 "/sys/fs/cgroup does not exist" | ||
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| test -n "$IS_UNSHARED" && mount --make-rprivate / | ||
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| # make build root a mount point | ||
| mount --rbind --make-private "$BUILD_ROOT" "$BUILD_ROOT" | ||
| mount --make-rprivate "$BUILD_ROOT" | ||
| if ! test -e $BUILD_ROOT/sys/block; then | ||
| mkdir -p $BUILD_ROOT/sys | ||
| mount -n -tsysfs sys $BUILD_ROOT/sys | ||
| fi | ||
| mount --rbind /sys/fs/cgroup "$BUILD_ROOT/sys/fs/cgroup" | ||
| mount --make-rslave "$BUILD_ROOT/sys/fs/cgroup" | ||
| export DOCKER_RAMDISK=true | ||
| fi | ||
|
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| # create loopback interface | ||
| if test -x /sbin/ip ; then | ||
| ip addr add 127.0.0.1/8 dev lo | ||
| ip addr add ::1/128 dev lo | ||
| ip link set lo up | ||
| else | ||
| ifconfig lo 127.0.0.1 up | ||
| ifconfig lo add ::1/128 | ||
| fi | ||
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| # setup mounts | ||
| test -e "$BUILD_ROOT/proc/self" || mount -n -tproc none $BUILD_ROOT/proc | ||
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| echo "Starting container daemon" | ||
| chroot $BUILD_ROOT /usr/sbin/containerd --listen unix:///run/containerd/containerd.sock & | ||
| CONTAINERD_PID=$! | ||
| echo "$CONTAINERD_PID $DOCKERD_PID $WEBSERVER_PID" > $BUILD_ROOT/.startdockerd.pids | ||
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| echo "Starting docker daemon" | ||
| chroot $BUILD_ROOT /usr/bin/dockerd --containerd /run/containerd/containerd.sock --bridge=none --add-runtime oci=/usr/bin/docker-runc & | ||
| DOCKERD_PID=$! | ||
| echo "$CONTAINERD_PID $DOCKERD_PID $WEBSERVER_PID" > $BUILD_ROOT/.startdockerd.pids | ||
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| echo "Waiting for docker daemon to complete startup" | ||
| for i in 1 2 3 4 5 6 7 8 9 10 ; do | ||
| chroot $BUILD_ROOT docker version >/dev/null 2>&1 && break | ||
| sleep 1 | ||
| done | ||
| if ! chroot $BUILD_ROOT docker version >/dev/null 2>&1 ; then | ||
| cleanup_and_exit 1 "Docker is dead" | ||
| fi | ||
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| if test -n "$WEBSERVER" ; then | ||
| echo "Starting local repository server" | ||
| chroot $BUILD_ROOT bash -c "cd $WEBSERVER && python -m SimpleHTTPServer 80 &" | ||
| WEBSERVER_PID=$! | ||
| echo "$CONTAINERD_PID $DOCKERD_PID $WEBSERVER_PID" > $BUILD_ROOT/.startdockerd.pids | ||
| fi | ||
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| echo "Docker is running" | ||
| exit 0 |