start-up helper script
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Asif Bacchus
parent
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191
ab-nginx.sh
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191
ab-nginx.sh
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#!/bin/sh
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#
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### start openldap container using params file variables
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#
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# text formatting presets
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cyan=$(tput setaf 6)
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err=$(tput bold)$(tput setaf 1)
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magenta=$(tput setaf 5)
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norm=$(tput sgr0)
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yellow=$(tput setaf 3)
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### parameter defaults
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container_name="ab-nginx"
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shell=false
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scriptHelp () {
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printf "\n${magenta}%80s\n" | tr " " "-"
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printf "${norm}This is a simple helper script so you can avoid lengthy typing when working\n"
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printf "with the nginx container. The script reads the contents of 'ab-nginx.params'\n"
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printf "and constructs various 'docker run' commands based on that file. The biggest\n"
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printf "timesaver is working with certificates. If they are specified in params file,\n"
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printf "the script will automatically bind-mount them so nginx serves content via SSL\n"
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printf "by default.\n\n"
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printf "If you run the script with no parameters, it will execute the container\n"
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printf "'normally': Run in detached mode with nginx automatically launched and\n"
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printf "logging to stdout. If you specified certificates, nginx will serve over SSL\n"
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printf "by default.\n"
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printf "Note: This container removes itself upon exit.\n\n"
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printf "${magenta}The script has the following parameters:\n"
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printf "${cyan}(parameter in cyan) ${yellow}(default in yellow)${norm}\n\n"
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printf "${cyan}-n|--name${norm}\n"
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printf "Change the name of the container. This is cosmetic and does not affect\n"
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printf "operation in any way.\n"
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printf "${yellow}(ab-nginx)${norm}\n\n"
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printf "${cyan}-s|--shell${norm}\n"
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printf "Enter the container using an interactive POSIX shell. This happens after\n"
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printf "startup operations but *before* nginx is actually started. This is a great way\n"
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printf "to see configuration changes possibly stopping nginx from starting normally.\n"
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printf "${yellow}(off: run in detached mode)${norm}\n\n"
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printf "${yellow}More information can be found at:\n"
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printf "https://git.asifbacchus.app/ab-docker/ab-nginx/wiki\n"
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printf "${magenta}%80s\n\n" | tr " " "-"
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exit 0
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}
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### pre-requisite checks
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# is user root or in the docker group?
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if [ ! "$( id -u )" -eq 0 ]; then
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if ! id -Gn | grep docker > /dev/null; then
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printf "${err}\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${norm}"
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exit 2
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fi
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fi
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# does the params file exist?
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if [ ! -f "./ab-nginx.params" ]; then
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printf "${err}\nCannot find 'ab-nginx.params' file in the same directory as this script. Exiting.\n${norm}"
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exit 3
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fi
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# check for certs if using SSL
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if [ "$SSL_CERT" ]; then
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if [ ! -f "$SSL_CERT" ]; then
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printf "${err}\nCannot find specified SSL certificate file. Exiting.${norm}\n"
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exit 5
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fi
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if [ ! -f "$SSL_KEY" ]; then
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printf "${err}\nCannot find specified SSL private key file. Exiting.${norm}\n"
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exit 5
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fi
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if [ ! -f "$SSL_CHAIN" ]; then
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printf "${err}\nCannot find specified SSL certificate chain file. Exiting.${norm}\n"
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exit 5
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fi
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fi
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# check for DHparam if using TLS1.2
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if [ "$TLS13_ONLY" = FALSE ]; then
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if [ -z "$DH" ]; then
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printf "${err}\nA DHparam file must be specified when using TLS 1.2. Exiting.${norm}\n"
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exit 5
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elif [ -f "$DH" ]; then
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printf "${err}\nCannot find specified DHparam file. Exiting.${norm}\n"
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exit 5
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fi
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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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shell=true
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;;
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-n|--name)
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# container name
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if [ -z "$2" ]; then
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printf "${err}\nNo container name specified. Exiting.\n${norm}"
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exit 1
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fi
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container_name="$2"
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shift
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;;
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*)
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printf "${err}\nUnknown option: %s\n" "$1"
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printf "Use '--help' for valid options.\n\n${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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# read .params file
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. ./ab-openldap.params
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# run without TLS
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if [ -z "$SSL_CERT" ]; then
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if [ $shell = true ]; then
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# exec shell
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printf "${cyan}\nRunning SHELL on %s...${norm}\n" "$container_name"
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docker run --rm -it --name ${container_name} --env-file ab-nginx.params -p 80:80 ab-nginx:testing /bin/sh
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else
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# exec normally
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printf "${cyan}\nRunning NGINX on %s...${norm}\n" "$container_name"
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docker run --rm -d --name ${container_name} --env-file ab-nginx.params -p 80:80 ab-nginx:testing
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fi
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# run with TLS1.2
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elif [ "$SSL_CERT" ] && [ "$TLS13_ONLY" = FALSE ]; then
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if [ $shell = true ]; then
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# exec shell
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printf "${cyan}\nRunning SHELL on %s (TLS 1.2)...${norm}\n" "$container_name"
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docker run --rm -it --name ${container_name} \
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--env-file ab-nginx.params \
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-v "$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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-v "$DH":/certs/dhparam.pem:ro \
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-p 80:80 -p 443:443 \
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ab-nginx:testing /bin/sh
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else
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# exec normally
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printf "${cyan}\nRunning OPENLDAP on %s (TLS 1.2)...${norm}\n" "$container_name"
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docker run --rm -d --name ${container_name} \
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--env-file ab-nginx.params \
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-v "$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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-v "$DH":/certs/dhparam.pem:ro \
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-p 80:80 -p 443:443 \
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ab-nginx:testing
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fi
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# run with TLS1.3
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elif [ "$SSL_CERT" ] && [ "$TLS13_ONLY" = TRUE ]; then
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if [ $shell = true ]; then
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# exec shell
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printf "${cyan}\nRunning SHELL on %s (TLS 1.3)...${norm}\n" "$container_name"
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docker run --rm -it --name ${container_name} \
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--env-file ab-nginx.params \
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-v "$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 80:80 -p 443:443 \
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ab-nginx:testing /bin/sh
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else
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# exec normally
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printf "${cyan}\nRunning OPENLDAP on %s (TLS 1.3)...${norm}\n" "$container_name"
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docker run --rm -d --name ${container_name} \
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--env-file ab-nginx.params \
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-v "$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 80:80 -p 443:443 \
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ab-nginx:testing
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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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