[WIP] Docker templater mostly working (to be squashed)
This commit is contained in:
Kevin Baensch
parent
d1c6d54a22
commit
ed71970153
7 changed files with 77 additions and 56 deletions
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@ -2,19 +2,25 @@ version: "3.4"
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services:
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hostman:
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image: apteno/alpine-jq
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image: julienlecomte/docker-make
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command: ["./hostman.sh", "&", "wait", "$!" ]
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volumes:
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- /var/run/docker.sock:/tmp/docker.sock:ro
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- /etc/hosts:/tmp/hosts:rw
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- /etc/hosts:/config/hosts:rw
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- ./script/hostman.sh:/hostman.sh:ro
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nginx-proxy:
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image: jwilder/nginx-proxy
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- ./script/docker-templater.sh:/docker-templater.sh:ro
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- ./templates:/templates
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- ./config:/config
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networks:
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- proxy
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proxy:
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image: caddy:2.6.2-alpine
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ports:
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- "80:80"
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- "443:443"
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volumes:
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- /var/run/docker.sock:/tmp/docker.sock:ro
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- ./config/Caddyfile:/etc/caddy/Caddyfile
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networks:
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- proxy
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@ -55,7 +55,7 @@ fi
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for row in $(jq -r '.[] | @base64' <<< "${DOCKER_DATA}")
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do
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CONTAINER_DATA=$(base64 --decode <<< "${row}");
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CONTAINER_DATA=$(base64 -d <<< "${row}");
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# Set non Label values
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if [ -z "${LOCAL_IP}" ]
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then
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@ -91,7 +91,7 @@ do
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if template_hook
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then
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# FIX with printf
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RESULT+="${PARTIAL_RESULT}"
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RESULT=$(printf '%s' "${RESULT}" "${RESULT:+$SEPARATOR}" "${PARTIAL_RESULT}")
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fi
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else
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RESULT=$(printf '%s' "${RESULT}" "${RESULT:+$SEPARATOR}" "${PARTIAL_RESULT}")
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@ -100,23 +100,19 @@ do
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# Unset label-environment variables for next container
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for var in $(envsubst -v "${TEMPLATE}")
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do
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if [ "${var}" != "LOCAL_IP" ]
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then
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unset "${!var}"
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fi
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unset "${var}"
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done
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done
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RESULT="${WRAP_START}${RESULT}${WRAP_END}"
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RESULT="$(printf "%b" "${WRAP_START}" "${RESULT}" "${WRAP_END}")"
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if [ -z "${OUT}" ]
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then
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printf "%b\n" "${RESULT}";
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printf "%b" "${RESULT}";
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else
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if ! diff --brief "${OUT}" - > /dev/null 2>&1 <<< "${RESULT}"
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if [ "$(cat "${OUT}")" != "${RESULT}" ]
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then
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printf "Template Task: '%s' has been written to: '%s'\n" "${TEMPLATE_SRC}" "${OUT}"
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printf "%b\n" "${RESULT}" > "${OUT}";
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printf "%s | Template Task: '%s' has been written to: '%s'\n" "$(date --iso-8601)" "${TEMPLATE_SRC}" "${OUT}"
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printf "%b" "${RESULT}" > "${OUT}";
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fi
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fi
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@ -1,46 +1,33 @@
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#!/usr/bin/env sh
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# Configurable Variables
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[ -z $DOCKER_SOCK_PATH ] && DOCKER_SOCK_PATH="/tmp/docker.sock"
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[ -z $NETWORK_NAME ] && NETWORK_NAME="proxy"
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[ -z $RESOLVE_DOCKERHOST ] && RESOLVE_DOCKERHOST=false
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[ -z $HOST_CONF_PATH ] && HOST_CONF_PATH="/tmp/hosts"
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[ -z $DOCKER_HOSTNAME_VAR ] && DOCKER_HOSTNAME_VAR="VIRTUAL_HOST"
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DOCKER_SOCK_PATH="${DOCKER_SOCK_PATH:-/tmp/docker.sock}"
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NETWORK_NAME="${NETWORK_NAME:-proxy}"
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TEMPLATER_PATH="${TEMPLATER_PATH:-/docker-templater.sh}"
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TEMPLATE_FOLDER_PATH="${TEMPLATE_FOLDER_PATH:-/templates}"
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query_docker () {
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curl --unix-socket $DOCKER_SOCK_PATH --silent -g http://v1.41/$1$2
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}
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get_host_list() {
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PROXY_HOST_CONF=""
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CONTAINER_LIST=$(query_docker "containers/json" "?filters={%22network%22:[%22${NETWORK_NAME}%22],%22status%22:[%22running%22]}" | jq -cr '.[].Id')
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for id in $CONTAINER_LIST
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do
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# Query individual container to access relevant data
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CONTAINER_DATA=$(query_docker "containers/${id}/json")
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if $RESOLVE_DOCKERHOST
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then
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HOST_IP=$(echo $CONTAINER_DATA | jq -cr '.NetworkSettings.Networks.proxy.IPAddress')
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else
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HOST_IP="127.0.0.1"
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fi
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# Filter Env for HOSTNAME, remove list parenthesis and split/only keep values
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HOST_NAMES=$(echo $CONTAINER_DATA | jq -cr ".Config.Env[] | select(contains(\"$DOCKER_HOSTNAME_VAR=\")) | split(\"=\")[1]")
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for hostname in $HOST_NAMES
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update_templates() {
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CONTAINER_LIST=$(query_docker "containers/json" "?filters={%22network%22:[%22${NETWORK_NAME}%22],%22status%22:[%22running%22]}")
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if [ "${CONTAINER_LIST}" != "${OLD_CONTAINER_LIST}" ]
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then
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for template in "${TEMPLATE_FOLDER_PATH}"/*
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do
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PROXY_HOST_CONF="$PROXY_HOST_CONF\n$HOST_IP $hostname # Added by hostman"
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if ! "${TEMPLATER_PATH}" "${template}" "${CONTAINER_LIST}"
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then
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echo "Error Processing Template: ${template}"
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fi
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done
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done
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echo $PROXY_HOST_CONF
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OLD_CONTAINER_LIST="${CONTAINER_LIST}"
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fi
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}
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update_host_list() {
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FILTERED_HOSTS=$(grep -ve "# Added by hostman$" $HOST_CONF_PATH)
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echo -e "$FILTERED_HOSTS$(get_host_list)" > $HOST_CONF_PATH
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}
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# Initial Generation
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update_templates
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update_host_list
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# cannot filter because reailine no longer recognized lines otherwise (check how IFS changes)
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query_docker "events" | while true
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do
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@ -48,7 +35,7 @@ do
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# wait for related events to finish
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while [ $? -eq 0 ]
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do
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read -t 5 -r;
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read -t 8 -r
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done
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update_host_list
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update_templates
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done
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@ -5,4 +5,4 @@ chown -R sqlproxy:sqlproxy /etc/ssh/.ssh
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chmod 0700 /etc/ssh/.ssh
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chmod 0600 /etc/ssh/.ssh/authorized_keys
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source ./hostman.sh
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sleep infinity
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@ -1,16 +1,33 @@
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#!/usr/bin/env bash
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set -e
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DOCKER_SOCK_PATH="${DOCKER_SOCK_PATH:-/tmp/docker.sock}"
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DOCKER_CADDY_NAME="${DOCKER_CADDY_NAME:-proxy}"
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DOCKER_CADDY_PORT="${DOCKER_CADDY_PORT:-2020}"
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TEMPLATE='reverse_proxy $LOCAL_WEB_HOST ${LOCAL_IP}:$LOCAL_WEB_PORT'
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WRAP_START='{\n admin :2020\n}\n'
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WRAP_END='\n'
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TEMPLATE='${LOCAL_WEB_HOST} {\n reverse_proxy ${LOCAL_IP}:$LOCAL_WEB_PORT\n}'
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SEPARATOR='\n'
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OUT='/config/Caddyfile'
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label_hook() {
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LOCAL_WEB_PORT="${LOCAL_WEB_PORT:-80}"
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}
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template_hook() {
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if grep -q '^reverse_proxy [^\s] [:.0-9a-e]\+:\d+$' <<< "${PARTIAL_RESULT}"
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printf "%s" "${PARTIAL_RESULT}"
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if grep '^[^ ]\+ {\\n reverse_proxy \(?::\|[.0-9a-e]\)\+\:[0-9]\+\\n}$' <<< "${PARTIAL_RESULT}"
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then
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return 0;
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fi
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return 1;
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}
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# finally_hook() {
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# if curl --silent -g "${DOCKER_CADDY_NAME}:${DOCKER_CADDY_PORT}/load"
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# then
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# printf "Updated Caddy Config"
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# else
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# printf "Failed to update Caddy Config"
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# fi
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# }
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@ -1,6 +1,6 @@
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#!/usr/bin/env bash
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set -e
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HOST_CONF_PATH="${HOST_CONF_PATH:-/tmp/hosts}"
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HOST_CONF_PATH="${HOST_CONF_PATH:-/config/hosts}"
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RESOLVE_DOCKERHOST="${RESOLVE_DOCKERHOST:-false}"
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DOCKER_HOSTNAME_VAR="${DOCKER_HOSTNAME_VAR:-LOCAL_WEB_HOST}"
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@ -31,8 +31,8 @@ else
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OUT="${HOST_CONF_OUT}"
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fi
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check_template() {
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if grep -q '^[:.0-9a-e]\+ [^\s]\+ # Added by hostman$' <<< "${PARTIAL_RESULT}"
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template_hook() {
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if grep -q '^[:.0-9a-e]\+ [^ ]\+ # Added by hostman$' <<< "${PARTIAL_RESULT}"
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then
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return 0;
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fi
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@ -1,6 +1,21 @@
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#!/usr/bin/env bash
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EXCLUDE_USERPASS="${EXCLUDE_USERPASS:-false}"
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set -e
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WRAP_START='[\n'
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TEMPLATE=' { type: "${LOCAL_DB_TYPE}", user: "${LOCAL_DB_USER}", password: "${LOCAL_DB_PASSWORD}", host: "${LOCAL_DB_HOST}", port: "${LOCAL_DB_PORT}" }'
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if ${EXCLUDE_USERPASS}
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then
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TEMPLATE=' { type: "${LOCAL_DB_TYPE}", host: "${LOCAL_DB_HOST}", port: "${LOCAL_DB_PORT}" }'
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else
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TEMPLATE=' { type: "${LOCAL_DB_TYPE}", user: "${LOCAL_DB_USER}", password: "${LOCAL_DB_PASSWORD}", host: "${LOCAL_DB_HOST}", port: "${LOCAL_DB_PORT}" }'
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fi
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SEPARATOR=',\n'
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WRAP_END='\n]'
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OUT="/config/sqlproxy.json"
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template_hook() {
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if grep -q 'type: "(?mysql|psql)".*host: ".+", port: "\d+"'
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then
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return 0
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fi
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return 1
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}
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