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add deploy hook to docker containers

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neilpang
neilpang committed Jun 1, 2019
1 parent 3508e1e commit 561803c0a75a73abe3a392c080d6678b84a31891
Showing with 265 additions and 0 deletions.
  1. +1 −0 Dockerfile
  2. +264 −0 deploy/docker.sh
@@ -8,6 +8,7 @@ RUN apk update -f \
curl \
socat \
tzdata \
tar \
&& rm -rf /var/cache/apk/*

ENV LE_CONFIG_HOME /acme.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
}

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