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Generic container management script
#!/bin/bash
# Always run from the script local directory:
cd "$(dirname "${BASH_SOURCE[0]}")"
# Constants:
IMAGE="yourprefix/imagename"
CONTAINER="containername"
# Configuration variables:
VERBOSE=0
DATADIR="$PWD/containerdata"
REMOTE=""
PORT=42368
# Load the config from ./container.cfg relative to this script:
[[ -e "container.cfg" ]] && source "container.cfg"
# Project-specific run options (these can use the config):
run_options=(
--publish="$PORT":2368
--volume="$DATADIR":/data
)
# Define a usage function for your future self:
usage() {
echo "Usage:"
echo " container.sh [<options>] <command>"
echo "Options:"
echo " -v Turn up verbosity"
echo " -d <dir> Set data directory"
echo " -p <port> Set listening port (e.g. 80 or 127.0.0.1:80)"
echo "Commands:"
echo " build Build the container"
echo " run Run the container"
echo " tail Follow the STDOUT from the container"
echo " stop Kill and remove the container"
echo " restart Restart a possibly-running container"
echo " push Push the container to gcr.io"
exit 1
}
# Accept overrides from the command-line:
while getopts "vd:p:" opt; do
case "$opt" in
v) VERBOSE=$(($VERBOSE+1));;
d) DATADIR="$OPTARG";;
p) PORT="$OPTARG";;
*) usage;;
esac
done
shift $((OPTIND-1))
if [[ $VERBOSE -ge 1 ]]; then
echo "Project:"
echo " Image: $IMAGE"
echo " Container: $CONTAINER"
echo " Remote Tag: $REMOTE"
echo "Config:"
echo " Verbosity: $VERBOSE"
echo " Data Directory: $DATADIR"
if [[ $VERBOSE -ge 2 ]]; then
echo "Run Options:"
echo " ${run_options[@]}"
fi
fi
[[ -z "$1" ]] && usage
# Execute the command(s):
for command in "$@"; do
case "$command" in
build) docker build -t "$IMAGE" .;;
run) docker run --detach --name "$CONTAINER" "${run_options[@]}" "$IMAGE";;
stop) docker kill "$CONTAINER";;
restart) docker rm -f "$CONTAINER";
docker run --detach --name "$CONTAINER" "${run_options[@]}" "$IMAGE";;
push)
if [[ -z "$REMOTE" ]]; then
echo "error: must configure REMOTE for push"
exit 1
fi
docker tag -f "$IMAGE" "$REMOTE"
gcloud docker push "$REMOTE"
;;
*) usage;;
esac
done
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