From 1d3c7a1651c238c6818a3434f230a4a54ab7840c Mon Sep 17 00:00:00 2001 From: Jef Roosens Date: Mon, 16 May 2022 14:09:21 +0200 Subject: [PATCH] refactor(docker): renamed DockerDaemon to DockerConn --- src/docker/README.md | 5 +++++ src/docker/containers.v | 12 ++++++------ src/docker/docker.v | 26 +++++++++++++------------- src/docker/images.v | 6 +++--- src/docker/stream.v | 2 +- 5 files changed, 28 insertions(+), 23 deletions(-) create mode 100644 src/docker/README.md diff --git a/src/docker/README.md b/src/docker/README.md new file mode 100644 index 0000000..5236277 --- /dev/null +++ b/src/docker/README.md @@ -0,0 +1,5 @@ +# docker + +This module implements part of the Docker Engine API v1.41 +([documentation](https://docs.docker.com/engine/api/v1.41/)) using socket-based +HTTP communication. diff --git a/src/docker/containers.v b/src/docker/containers.v index 7605452..62c8031 100644 --- a/src/docker/containers.v +++ b/src/docker/containers.v @@ -15,7 +15,7 @@ struct Container { } // containers returns a list of all containers. -pub fn (mut d DockerDaemon) containers() ?[]Container { +pub fn (mut d DockerConn) containers() ?[]Container { d.send_request('GET', urllib.parse('/v1.41/containers/json')?)? head, res := d.read_response()? @@ -46,7 +46,7 @@ pub: } // create_container creates a new container with the given config. -pub fn (mut d DockerDaemon) create_container(c NewContainer) ?CreatedContainer { +pub fn (mut d DockerConn) create_container(c NewContainer) ?CreatedContainer { d.send_request_with_json('POST', urllib.parse('/v1.41/containers/create')?, c)? head, res := d.read_response()? @@ -62,7 +62,7 @@ pub fn (mut d DockerDaemon) create_container(c NewContainer) ?CreatedContainer { } // start_container starts the container with the given id. -pub fn (mut d DockerDaemon) start_container(id string) ? { +pub fn (mut d DockerConn) start_container(id string) ? { d.send_request('POST', urllib.parse('/v1.41/containers/$id/start')?)? head, body := d.read_response()? @@ -92,7 +92,7 @@ pub mut: } // inspect_container returns detailed information for a given container. -pub fn (mut d DockerDaemon) inspect_container(id string) ?ContainerInspect { +pub fn (mut d DockerConn) inspect_container(id string) ?ContainerInspect { d.send_request('GET', urllib.parse('/v1.41/containers/$id/json')?)? head, body := d.read_response()? @@ -114,7 +114,7 @@ pub fn (mut d DockerDaemon) inspect_container(id string) ?ContainerInspect { } // remove_container removes the container with the given id. -pub fn (mut d DockerDaemon) remove_container(id string) ? { +pub fn (mut d DockerConn) remove_container(id string) ? { d.send_request('DELETE', urllib.parse('/v1.41/containers/$id')?)? head, body := d.read_response()? @@ -127,7 +127,7 @@ pub fn (mut d DockerDaemon) remove_container(id string) ? { // get_container_logs returns a reader object allowing access to the // container's logs. -pub fn (mut d DockerDaemon) get_container_logs(id string) ?&StreamFormatReader { +pub fn (mut d DockerConn) get_container_logs(id string) ?&StreamFormatReader { d.send_request('GET', urllib.parse('/v1.41/containers/$id/logs?stdout=true&stderr=true')?)? head := d.read_response_head()? diff --git a/src/docker/docker.v b/src/docker/docker.v index f612d1f..4ce1ea6 100644 --- a/src/docker/docker.v +++ b/src/docker/docker.v @@ -15,17 +15,17 @@ const ( http_chunk_separator = [u8(`\r`), `\n`] ) -pub struct DockerDaemon { +pub struct DockerConn { mut: socket &unix.StreamConn reader &io.BufferedReader } // new_conn creates a new connection to the Docker daemon. -pub fn new_conn() ?&DockerDaemon { +pub fn new_conn() ?&DockerConn { s := unix.connect_stream(docker.socket)? - d := &DockerDaemon{ + d := &DockerConn{ socket: s reader: io.new_buffered_reader(reader: s) } @@ -34,12 +34,12 @@ pub fn new_conn() ?&DockerDaemon { } // close closes the underlying socket connection. -pub fn (mut d DockerDaemon) close() ? { +pub fn (mut d DockerConn) close() ? { d.socket.close()? } // send_request sends an HTTP request without body. -pub fn (mut d DockerDaemon) send_request(method string, url urllib.URL) ? { +pub fn (mut d DockerConn) send_request(method string, url urllib.URL) ? { req := '$method $url.request_uri() HTTP/1.1\nHost: localhost\n\n' d.socket.write_string(req)? @@ -49,7 +49,7 @@ pub fn (mut d DockerDaemon) send_request(method string, url urllib.URL) ? { } // send_request_with_body sends an HTTP request with the given body. -pub fn (mut d DockerDaemon) send_request_with_body(method string, url urllib.URL, content_type string, body string) ? { +pub fn (mut d DockerConn) send_request_with_body(method string, url urllib.URL, content_type string, body string) ? { req := '$method $url.request_uri() HTTP/1.1\nHost: localhost\nContent-Type: $content_type\nContent-Length: $body.len\n\n$body\n\n' d.socket.write_string(req)? @@ -60,7 +60,7 @@ pub fn (mut d DockerDaemon) send_request_with_body(method string, url urllib.URL // send_request_with_json is a convenience wrapper around // send_request_with_body that encodes the input as JSON. -pub fn (mut d DockerDaemon) send_request_with_json(method string, url urllib.URL, data &T) ? { +pub fn (mut d DockerConn) send_request_with_json(method string, url urllib.URL, data &T) ? { body := json.encode(data) return d.send_request_with_body(method, url, 'application/json', body) @@ -70,17 +70,17 @@ pub fn (mut d DockerDaemon) send_request_with_json(method string, url urllib. // '\r\n\r\n', after which it parses the response as an HTTP response. // Importantly, this function never consumes the reader past the HTTP // separator, so the body can be read fully later on. -pub fn (mut d DockerDaemon) read_response_head() ?http.Response { +pub fn (mut d DockerConn) read_response_head() ?http.Response { mut res := []u8{} - util.read_until_separator(mut d.reader, mut res, http_separator) ? + util.read_until_separator(mut d.reader, mut res, docker.http_separator)? return http.parse_response(res.bytestr()) } // read_response_body reads `length` bytes from the stream. It can be used when // the response encoding isn't chunked to fully read it. -pub fn (mut d DockerDaemon) read_response_body(length int) ?string { +pub fn (mut d DockerConn) read_response_body(length int) ?string { if length == 0 { return '' } @@ -101,7 +101,7 @@ pub fn (mut d DockerDaemon) read_response_body(length int) ?string { // read_response is a convenience function which always consumes the entire // response & returns it. It should only be used when we're certain that the // result isn't too large. -pub fn (mut d DockerDaemon) read_response() ?(http.Response, string) { +pub fn (mut d DockerConn) read_response() ?(http.Response, string) { head := d.read_response_head()? if head.header.get(http.CommonHeader.transfer_encoding) or { '' } == 'chunked' { @@ -121,7 +121,7 @@ pub fn (mut d DockerDaemon) read_response() ?(http.Response, string) { // get_chunked_response_reader returns a ChunkedResponseReader using the socket // as reader. -pub fn (mut d DockerDaemon) get_chunked_response_reader() &ChunkedResponseReader { +pub fn (mut d DockerConn) get_chunked_response_reader() &ChunkedResponseReader { r := new_chunked_response_reader(d.reader) return r @@ -129,7 +129,7 @@ pub fn (mut d DockerDaemon) get_chunked_response_reader() &ChunkedResponseReader // get_stream_format_reader returns a StreamFormatReader using the socket as // reader. -pub fn (mut d DockerDaemon) get_stream_format_reader() &StreamFormatReader { +pub fn (mut d DockerConn) get_stream_format_reader() &StreamFormatReader { r := new_chunked_response_reader(d.reader) r2 := new_stream_format_reader(r) diff --git a/src/docker/images.v b/src/docker/images.v index 5866905..cab7f34 100644 --- a/src/docker/images.v +++ b/src/docker/images.v @@ -10,7 +10,7 @@ pub: } // pull_image pulls the given image:tag. -pub fn (mut d DockerDaemon) pull_image(image string, tag string) ? { +pub fn (mut d DockerConn) pull_image(image string, tag string) ? { d.send_request('POST', urllib.parse('/v1.41/images/create?fromImage=$image&tag=$tag')?)? head := d.read_response_head()? @@ -33,7 +33,7 @@ pub fn (mut d DockerDaemon) pull_image(image string, tag string) ? { } // create_image_from_container creates a new image from a container. -pub fn (mut d DockerDaemon) create_image_from_container(id string, repo string, tag string) ?Image { +pub fn (mut d DockerConn) create_image_from_container(id string, repo string, tag string) ?Image { d.send_request('POST', urllib.parse('/v1.41/commit?container=$id&repo=$repo&tag=$tag')?)? head, body := d.read_response()? @@ -49,7 +49,7 @@ pub fn (mut d DockerDaemon) create_image_from_container(id string, repo string, } // remove_image removes the image with the given id. -pub fn (mut d DockerDaemon) remove_image(id string) ? { +pub fn (mut d DockerConn) remove_image(id string) ? { d.send_request('DELETE', urllib.parse('/v1.41/images/$id')?)? head, body := d.read_response()? diff --git a/src/docker/stream.v b/src/docker/stream.v index ed73098..dff1784 100644 --- a/src/docker/stream.v +++ b/src/docker/stream.v @@ -68,7 +68,7 @@ fn (mut r ChunkedResponseReader) read_chunk_size() ?u64 { r.started = true mut res := []u8{} - util.read_until_separator(mut r.reader, mut res, http_chunk_separator) ? + util.read_until_separator(mut r.reader, mut res, http_chunk_separator)? // The length of the next chunk is provided as a hexadecimal mut num_data := hex.decode(res#[..-2].bytestr())?