54 lines
1.8 KiB
Bash
Executable file
54 lines
1.8 KiB
Bash
Executable file
#!/usr/bin/env sh
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# Configurable Variables
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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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# Path to Docker Templater and Templates
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TEMPLATER_PATH="/docker-templater.sh"
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TEMPLATE_FOLDER_PATH="/templates"
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get_date() {
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printf '%s' "$(date +'%Y.%m.%d_%H:%M:%S')"
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}
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query_docker () {
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curl --unix-socket $DOCKER_SOCK_PATH --silent -g http://v1.41/$1$2
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}
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update_templates() {
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CONTAINER_LIST=$(query_docker "containers/json" "?filters={%22network%22:[%22${NETWORK_NAME}%22],%22status%22:[%22running%22]}")
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LABELS_NEW="$(echo "${CONTAINER_LIST}" | jq '.[].Labels | to_entries | map(select(.key | startswith("local.")) | .key + .value) | sort | .[] | @base64')"
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if [ "${LABELS_NEW}" != "${LABELS_OLD}" ]
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then
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if [ -n "${LABELS_OLD}" ]
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then
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printf '%s | Container label list change detected.\n' "$(get_date)"
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fi
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LABELS_OLD="${LABELS_NEW}"
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for template in "${TEMPLATE_FOLDER_PATH}"/*
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do
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if ! "${TEMPLATER_PATH}" "${template}" "${CONTAINER_LIST}"
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then
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printf '%s | Error Processing Template: %s\n' "$(get_date)" "${template}"
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fi
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done
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fi
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}
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# Initial Generation
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update_templates
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LAST_CHECK="$(date +%s)"
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while true
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do
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EVENTS=""
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printf '%s | Listening for docker events\n' "$(get_date)"
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while [ -z "${EVENTS}" ]
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do
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NEXT_CHECK="$(($(date +%s) + 5))"
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EVENTS=$(query_docker 'events' "?since=${LAST_CHECK}&until=${NEXT_CHECK}&filters={%22event%22:[%22die%22,%22kill%22,%22oom%22,%22pause%22,%22restart%22,%22start%22,%22stop%22,%22unpause%22,%22update%22]}")
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LAST_CHECK="${NEXT_CHECK}"
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done
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printf '%s | Checking for changes in container label list.\n' "$(get_date)"
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update_templates
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done
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