add deploy hook to docker containers

Dockerfile

@@ -8,6 +8,7 @@ RUN apk update -f \
   curl \
   socat \
   tzdata \
+  tar \
   && rm -rf /var/cache/apk/*
 
 ENV LE_CONFIG_HOME /acme.sh

deploy/docker.sh

@@ -0,0 +1,264 @@
+#!/usr/bin/env sh
+
+#DEPLOY_DOCKER_CONTAINER_LABEL="xxxxxxx"
+#DOCKER_HOST=/var/run/docker.sock | tcp://localhost:8888
+
+
+#DEPLOY_DOCKER_CONTAINER_KEY_FILE="/path/to/key.pem"
+#DEPLOY_DOCKER_CONTAINER_CERT_FILE="/path/to/cert.pem"
+#DEPLOY_DOCKER_CONTAINER_CA_FILE="/path/to/ca.pem"
+#DEPLOY_DOCKER_CONTAINER_FULLCHAIN_FILE="/path/to/fullchain.pem"
+#DEPLOY_DOCKER_CONTAINER_RELOAD_CMD="service nginx force-reload"
+
+_DEPLOY_DOCKER_WIKI="http://xxxxxx"
+
+_DOCKER_HOST_DEFAULT="/var/run/docker.sock"
+
+docker_deploy() {
+  _cdomain="$1"
+  _ckey="$2"
+  _ccert="$3"
+  _cca="$4"
+  _cfullchain="$5"
+
+  if [ -z "$DEPLOY_DOCKER_CONTAINER_LABEL" ]; then
+    _err "The DEPLOY_DOCKER_CONTAINER_LABEL variable is not defined, we use this label to find the container."
+    _err "See: $_DEPLOY_DOCKER_WIKI"
+  fi
+
+  _savedomainconf DEPLOY_DOCKER_CONTAINER_LABEL "$DEPLOY_DOCKER_CONTAINER_LABEL"
+
+  if [ "$DOCKER_HOST" ]; then
+    _saveaccountconf DOCKER_HOST "$DOCKER_HOST"
+  fi
+
+  if _exists docker && docker version | grep -i docker >/dev/null; then
+    _info "Using docker command"
+    export _USE_DOCKER_COMMAND=1
+  else
+    export _USE_DOCKER_COMMAND=
+  fi
+
+  export _USE_UNIX_SOCKET=
+  if [ -z "$_USE_DOCKER_COMMAND" ]; then
+    export _USE_REST=
+    if [ "$DOCKER_HOST" ]; then
+      _debug "Try use docker host: $DOCKER_HOST"
+      export _USE_REST=1
+    else
+      export _DOCKER_SOCK="$_DOCKER_HOST_DEFAULT"
+      _debug "Try use $_DOCKER_SOCK"
+      if [ ! -e "$_DOCKER_SOCK" ] || [ ! -w "$_DOCKER_SOCK" ]; then
+        _err "$_DOCKER_SOCK is not available"
+        return 1
+      fi
+      export _USE_UNIX_SOCKET=1
+      if ! _exists "curl"; then
+        _err "Please install curl first."
+        _err "We need curl to work."
+        return 1
+      fi
+      if ! _check_curl_version; then
+        return 1
+      fi
+    fi
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_KEY_FILE" ]; then
+    _savedomainconf DEPLOY_DOCKER_CONTAINER_KEY_FILE "$DEPLOY_DOCKER_CONTAINER_KEY_FILE"
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_CERT_FILE" ]; then
+    _savedomainconf DEPLOY_DOCKER_CONTAINER_CERT_FILE "$DEPLOY_DOCKER_CONTAINER_CERT_FILE"
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_CA_FILE" ]; then
+    _savedomainconf DEPLOY_DOCKER_CONTAINER_CA_FILE "$DEPLOY_DOCKER_CONTAINER_CA_FILE"
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_FULLCHAIN_FILE" ]; then
+    _savedomainconf DEPLOY_DOCKER_CONTAINER_FULLCHAIN_FILE "$DEPLOY_DOCKER_CONTAINER_FULLCHAIN_FILE"
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_RELOAD_CMD" ]; then
+    _savedomainconf DEPLOY_DOCKER_CONTAINER_RELOAD_CMD "$DEPLOY_DOCKER_CONTAINER_RELOAD_CMD"
+  fi
+
+  _cid="$(_get_id "$DEPLOY_DOCKER_CONTAINER_LABEL")"
+  _info "Container id: $_cid"
+  if [ -z "$_cid" ]; then
+    _err "can not find container id"
+    return 1
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_KEY_FILE" ]; then
+    if ! _docker_cp "$_cid" "$_ckey" "$DEPLOY_DOCKER_CONTAINER_KEY_FILE"; then
+      return 1
+    fi
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_CERT_FILE" ]; then
+    if ! _docker_cp "$_cid" "$_ccert" "$DEPLOY_DOCKER_CONTAINER_CERT_FILE"; then
+      return 1
+    fi
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_CA_FILE" ]; then
+    if ! _docker_cp "$_cid" "$_cca" "$DEPLOY_DOCKER_CONTAINER_CA_FILE"; then
+      return 1
+    fi
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_FULLCHAIN_FILE" ]; then
+    if ! _docker_cp "$_cid" "$_cfullchain" "$DEPLOY_DOCKER_CONTAINER_FULLCHAIN_FILE"; then
+      return 1
+    fi
+  fi
+
+  if [ "$DEPLOY_DOCKER_CONTAINER_RELOAD_CMD" ]; then
+    if ! _docker_exec "$_cid" "$DEPLOY_DOCKER_CONTAINER_RELOAD_CMD"; then
+      return 1
+    fi
+  fi
+  return 0
+}
+
+#label
+_get_id() {
+  _label="$1"
+  if [ "$_USE_DOCKER_COMMAND" ]; then
+    docker ps -f label="$_label" --format "{{.ID}}"
+  elif [ "$_USE_REST" ]; then
+    _err "Not implemented yet."
+    return 1
+  elif [ "$_USE_UNIX_SOCKET" ]; then
+    _req="{\"label\":[\"$_label\"]}"
+    _debug2 _req "$_req"
+    _req="$(printf "%s" "$_req" | _url_encode)"
+    _debug2 _req "$_req"
+    listjson="$(_curl_unix_sock "${_DOCKER_SOCK:-$_DOCKER_HOST_DEFAULT}" GET "/containers/json?filters=$_req")" 
+    _debug2 "listjson" "$listjson"
+    echo "$listjson" | tr '{,' '\n' | grep -i '"id":' | _head_n 1 | cut -d '"' -f 4
+  else
+    _err "Not implemented yet."
+    return 1
+  fi
+}
+
+#id  cmd
+_docker_exec() {
+  _eargs="$@"
+  _debug2 "_docker_exec $_eargs"
+  _dcid="$1"
+  shift
+  if [ "$_USE_DOCKER_COMMAND" ]; then
+    docker exec -i "$_dcid" $@
+  elif [ "$_USE_REST" ]; then
+    _err "Not implemented yet."
+    return 1
+  elif [ "$_USE_UNIX_SOCKET" ]; then
+    _cmd="$@"
+    _cmd="$(printf "$_cmd" | sed 's/ /","/g')"
+    _debug2 _cmd "$_cmd"
+    #create exec instance:
+    cjson="$(_curl_unix_sock "$_DOCKER_SOCK" POST "/containers/$_dcid/exec" "{\"Cmd\": [\"$_cmd\"]}")";
+    _debug2 cjson "$cjson"
+    execid="$(echo "$cjson" | cut -d '"' -f 4)"
+    _debug execid "$execid"
+    ejson="$(_curl_unix_sock "$_DOCKER_SOCK" POST "/exec/$execid/start" "{\"Detach\": false,\"Tty\": false}")";
+    _debug2 ejson "$ejson"
+  else
+    _err "Not implemented yet."
+    return 1
+  fi
+}
+
+#id from  to
+_docker_cp() {
+  _dcid="$1"
+  _from="$2"
+  _to="$3"
+  _info "Copying file from $_from to $_to"
+  _dir="$(dirname "$_to")"
+  _docker_exec "$_dcid" mkdir -p "$_dir"
+  if [ "$_USE_DOCKER_COMMAND" ]; then
+    cat "$_from" | _docker_exec "$_dcid" tee "$_to" >/dev/null
+    if [ "$?" = "0" ]; then
+      _info "Success"
+      return 0
+    else
+      _info "Error"
+      return 1
+    fi
+  elif [ "$_USE_REST" ]; then
+    _err "Not implemented yet."
+    return 1
+  elif [ "$_USE_UNIX_SOCKET" ]; then
+    _frompath="$_from"
+    if _startswith "$_frompath" '/'; then
+      _frompath="$(echo "$_from" | cut -b 2- )" #remove the first '/' char
+    fi
+    _debug2 "_frompath" "$_frompath"
+    _toname="$(basename "$_to")"
+    _debug2 "_toname" "$_toname"
+    if ! tar --transform="s,$_frompath,$_toname," -cz "$_from" 2>/dev/null | _curl_unix_sock "$_DOCKER_SOCK" PUT "/containers/$_dcid/archive?noOverwriteDirNonDir=1&path=$(printf "%s" "$_dir" | _url_encode)" '@-' "Content-Type: application/octet-stream"; then
+      _err "copy error"
+      return 1
+    fi
+    return 0
+  else
+    _err "Not implemented yet."
+    return 1
+  fi
+
+}
+
+#sock method  endpoint data content-type
+_curl_unix_sock() {
+  _socket="$1"
+  _method="$2"
+  _endpoint="$3"
+  _data="$4"
+  _ctype="$5"
+  if [ -z "$_ctype" ]; then
+    _ctype="Content-Type: application/json"
+  fi
+  _debug _data "$_data"
+  _debug2 "url" "http://localhost$_endpoint"
+  if [ "$_CURL_NO_HOST" ]; then
+    _cux_url="http:$_endpoint"
+  else
+    _cux_url="http://localhost$_endpoint"
+  fi
+
+  if [ "$DEBUG" ] && [ "$DEBUG" -ge "2" ]; then
+    curl -vvv --silent --unix-socket "$_socket" -X $_method --data-binary "$_data" --header "$_ctype" "$_cux_url"
+  else
+    curl      --silent --unix-socket "$_socket" -X $_method --data-binary "$_data" --header "$_ctype" "$_cux_url"
+  fi
+
+}
+
+_check_curl_version() {
+  _cversion="$(curl -V | grep '^curl ' | cut -d ' ' -f 2)"
+  _debug2 "_cversion" "$_cversion"
+
+  _major="$(_getfield "$_cversion" 1 '.')"
+  _debug2 "_major" "$_major"
+
+  _minor="$(_getfield "$_cversion" 2 '.')"
+  _debug2 "_minor" "$_minor"
+
+  if [ "$_major$_minor" -lt "740" ]; then
+    _err "curl v$_cversion doesn't support unit socket"
+    return 1
+  fi
+  if [ "$_major$_minor" -lt "750" ]; then
+    _debug "Use short host name"
+    export _CURL_NO_HOST=1
+  else
+    export _CURL_NO_HOST=
+  fi
+  return 0
+}
+