277 lines
8.7 KiB
Bash
277 lines
8.7 KiB
Bash
#!/bin/sh
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#
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# start ab-nginx container using params file variables
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#
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# TODO: add stop & stop and remove commands
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# text formatting presets
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if command -v tput >/dev/null; then
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cyan=$(tput bold)$(tput setaf 6)
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err=$(tput bold)$(tput setaf 1)
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magenta=$(tput sgr0)$(tput setaf 5)
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norm=$(tput sgr0)
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yellow=$(tput sgr0)$(tput setaf 3)
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width=$(tput cols)
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else
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cyan=''
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err=''
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magenta=''
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norm=''
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yellow=''
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width=80
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fi
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### parameter defaults
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doShell=false
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container_name="ab-nginx"
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NETWORK='nginx_network'
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SUBNET='172.31.254.0/24'
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HTTP_PORT=80
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HTTPS_PORT=443
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unset CONFIG_DIR
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unset SERVERS_DIR
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unset WEBROOT_DIR
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unset vmount
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### functions
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checkExist() {
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if [ "$1" = 'file' ]; then
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if [ ! -f "$2" ]; then
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printf "%s\nCannot find file: '$2'. Exiting.\n%s" "$err" "$norm"
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exit 3
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fi
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elif [ "$1" = 'dir' ]; then
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if [ ! -d "$2" ]; then
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printf "%s\nCannot find directory: '$2'. Exiting.\n$%s" "$err" "$norm"
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exit 3
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fi
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fi
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return 0
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}
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scriptHelp() {
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printf "\n%s" "$magenta"
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printf '%.0s-' $(seq "$width")
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printf "\n%s" "$norm"
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textBlock "This is a simple helper script so you can avoid typing lengthy commands when working with the ab-nginx container."
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textBlock "The script reads the contents of 'ab-nginx.params' and constructs various 'docker run' commands based on that file. The biggest time-saver is working with certificates. If they are specified in the params file, the script will automatically bind-mount them so nginx serves content via SSL by default."
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newline
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textBlock "If you run the script with no parameters, it will execute the container 'normally': Run in detached mode with nginx automatically launched. If you specified certificates, nginx will serve over SSL by default."
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textBlock "Note: Containers (except shell) are always set to restart 'unless-stopped'. You must remove them manually if desired."
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printf "%s" "$magenta"
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newline
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textBlock "The script has the following (optional) parameters:"
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textBlockParam 'parameter in cyan' 'default in yellow'
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newline
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textBlockParam '-n|--name' 'ab-nginx'
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textBlock "Set the name of the container, otherwise the default will be used."
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newline
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textBlockParam'-s|--shell' 'off: run in detached mode'
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textBlock "Enter the container using an interactive ASH/BusyBox shell. This happens after startup operations but *before* nginx is actually started. This is a great way to see configuration changes possibly stopping nginx from starting normally."
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printf "%s" "$yellow"
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newline
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textBlock"More information can be found at: https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki"
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printf "\n%s" "$magenta"
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printf '%.0s-' $(seq "$width")
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printf "\n%s" "$norm"
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exit 0
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}
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newline() {
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printf "\n"
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}
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textBlock() {
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printf "%s\n" "$1" | fold -w "$width" -s
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}
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textBlockParam() {
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if [ -z "$2" ]; then
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# no default
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printf "%s%s%s\n" "$cyan" "$1" "$norm"
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else
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# default param provided
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printf "%s%s %s(%s)%s\n" "$cyan" "$1" "$yellow" "$2" "$norm"
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fi
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}
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### pre-requisite checks
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# is docker installed?
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if ! command -v docker >/dev/null; then
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printf "%s\nCannot find docker... is it installed?\n%s" "$err" "$norm"
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exit 2
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fi
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# is user root or in the docker group?
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if [ ! "$(id -u)" -eq 0 ]; then
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if ! id -Gn | grep docker >/dev/null; then
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printf "%s\nYou must either be root or in the 'docker' group to run this script since you must be able to actually start the container! Exiting.\n$%s" "$err" "$norm"
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exit 2
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fi
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fi
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# does the params file exist?
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checkExist 'file' './ab-nginx.params'
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# read .params file
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. "./ab-nginx.params"
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# fix case of TLS13_ONLY var
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if [ "$TLS13_ONLY" ]; then
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TLS13_ONLY=$(printf "%s" "$TLS13_ONLY" | tr "[:lower:]" "[:upper:]")
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fi
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# check for certs if using SSL
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if [ "$SSL_CERT" ]; then checkExist 'file' "$SSL_CERT"; fi
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if [ "$SSL_KEY" ]; then checkExist 'file' "$SSL_KEY"; fi
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if [ "$SSL_CHAIN" ]; then checkExist 'file' "$SSL_CHAIN"; fi
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# check if specified config directory exists
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if [ "$CONFIG_DIR" ]; then
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checkExist 'dir' "$CONFIG_DIR"
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fi
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# check if specified server-block directory exists
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if [ "$SERVERS_DIR" ]; then
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checkExist 'dir' "$SERVERS_DIR"
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fi
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# check if specified webroot directory exists
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if [ "$WEBROOT_DIR" ]; then
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checkExist 'dir' "$WEBROOT_DIR"
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fi
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# set up volume mounts
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if [ "$CONFIG_DIR" ]; then
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volumeMounts="${volumeMounts} -v $CONFIG_DIR:/etc/nginx/config"
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fi
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if [ "$SERVERS_DIR" ]; then
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volumeMounts="${volumeMounts} -v $SERVERS_DIR:/etc/nginx/sites"
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fi
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if [ "$SNIPPETS_DIR" ]; then
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volumeMounts="${volumeMounts} -v $SNIPPETS_DIR:/etc/nginx/snippets"
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fi
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if [ "$WEBROOT_DIR" ]; then
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volumeMounts="${volumeMounts} -v $WEBROOT_DIR:/usr/share/nginx/html"
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fi
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# trim leading whitespace
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volumeMounts=${volumeMounts##[[:space:]]}
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# handle null HOSTNAMES
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if [ -z "$HOSTNAMES" ]; then HOSTNAMES="_"; fi
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# process startup parameters
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while [ $# -gt 0 ]; do
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case "$1" in
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-h | -\? | --help)
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# display help
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scriptHelp
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exit 0
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;;
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-s | --shell)
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# start shell instead of default CMD
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doShell=true
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;;
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-n | --name)
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# container name
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if [ -z "$2" ]; then
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printf "%s\nNo container name specified. Exiting.\n%s" "$err" "$norm"
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exit 1
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fi
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container_name="$2"
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shift
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;;
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*)
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printf "%s\nUnknown option: %s\n" "$err" "$1"
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printf "Use '--help' for valid options.\n\n%s" "$norm"
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exit 1
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;;
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esac
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shift
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done
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# create network if it doesn't already exist
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docker network inspect ${NETWORK} >/dev/null 2>&1 ||
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docker network create \
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--attachable \
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--driver=bridge \
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--subnet=${SUBNET} \
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${NETWORK}
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# run without TLS
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if [ -z "$SSL_CERT" ]; then
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if [ "$doShell" = 'true' ]; then
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# exec shell
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printf "%s\nRunning SHELL on %s...%s\n" "$cyan" "$container_name" "$norm"
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# shellcheck disable=SC2086
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docker run --rm -it --name "${container_name}" \
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--env-file ab-nginx.params \
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--user="${NGINX_UID:-8080}:${NGINX_GID:-8080}" \
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-e SERVER_NAMES="$HOSTNAMES" \
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${volumeMounts} \
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--network=${NETWORK} \
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-p ${HTTP_PORT}:80 \
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docker.asifbacchus.dev/nginx/ab-nginx:latest /bin/sh
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else
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# exec normally
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printf "%s\nRunning NGINX on %s...%s\n" "$cyan" "$container_name" "$norm"
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# shellcheck disable=SC2086
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docker run -d --name "${container_name}" \
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--env-file ab-nginx.params \
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--user="${NGINX_UID:-8080}:${NGINX_GID:-8080}" \
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-e SERVER_NAMES="$HOSTNAMES" \
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${volumeMounts} \
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--network=${NETWORK} \
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-p ${HTTP_PORT}:80 \
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--restart unless-stopped \
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docker.asifbacchus.dev/nginx/ab-nginx:${TAG:-latest}
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fi
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# run with TLS
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else
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if [ "$doShell" = 'true' ]; then
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if [ "$TLS13_ONLY" = 'FALSE' ]; then
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printf "%s\nRunning SHELL on %s (TLS 1.2)...%s\n" "$cyan" "$container_name" "$norm"
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else
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printf "%s\nRunning SHELL on %s (TLS 1.3)...%s\n" "$cyan" "$container_name" "$norm"
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fi
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# shellcheck disable=SC2086
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docker run --rm -it --name "${container_name}" \
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--env-file ab-nginx.params \
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--user="${NGINX_UID:-8080}:${NGINX_GID:-8080}" \
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-e SERVER_NAMES="$HOSTNAMES" \
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${volumeMounts} \
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--network=${NETWORK} \
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-v "$SSL_CERT":/certs/fullchain.pem:ro \
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-v "$SSL_KEY":/certs/privkey.pem:ro \
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-v "$SSL_CHAIN":/certs/chain.pem:ro \
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-p ${HTTP_PORT}:80 -p ${HTTPS_PORT}:443 \
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docker.asifbacchus.dev/nginx/ab-nginx:${TAG:-latest} /bin/sh
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else
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if [ "$TLS13_ONLY" = 'FALSE' ]; then
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printf "%s\nRunning NGINX on %s (TLS 1.2)...%s\n" "$cyan" "$container_name" "$norm"
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else
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printf "%s\nRunning NGINX on %s (TLS 1.3)...%s\n" "$cyan" "$container_name" "$norm"
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fi
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# shellcheck disable=SC2086
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docker run -d --name "${container_name}" \
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--env-file ab-nginx.params \
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--user="${NGINX_UID:-8080}:${NGINX_GID:-8080}" \
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-e SERVER_NAMES="$HOSTNAMES" \
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${volumeMounts} \
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--network=${NETWORK} \
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-v "$SSL_CERT":/certs/fullchain.pem:ro \
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-v "$SSL_KEY":/certs/privkey.pem:ro \
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-v "$SSL_CHAIN":/certs/chain.pem:ro \
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-p ${HTTP_PORT}:80 -p ${HTTPS_PORT}:443 \
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--restart unless-stopped \
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docker.asifbacchus.dev/nginx/ab-nginx:${TAG:-latest}
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fi
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fi
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### exit gracefully
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exit 0
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