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Today, I will talk to you about how to use UnixSocket to call Docker API in Java. Many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

Check the API calling method on the Docker official website.

For example: query the list of running containers as follows:

$curl-- unix-socket / var/run/docker.sock http:/v1.24/containers/json [{"Id": "ae63e8b89a26f01f6b4b2c9a7817c31a1b6196acf560f66586fbc8809ffcd772", "Names": ["/ tender_wing"], "Image": "bfirsh/reticulate-splines",...}] analyzes the process of API request

Execute the following command locally

Curl-v-unix-socket / var/run/docker.sock http:/v1.24/containers/json

Code implementation of Java simulating calling API

1. Introduce the UnixSocket toolkit

Com.github.jnr jnr-unixsocket 0.18

2. Test the code

Public static void main (String [] args) {/ / establish a UnixSocket connection File sockFile = new File ("/ var/run/docker.sock"); UnixSocketAddress address = new UnixSocketAddress (sockFile); UnixSocketChannel channel = UnixSocketChannel.open (address); UnixSocket unixSocket = new UnixSocket (channel); / / call Docker API PrintWriter w = new PrintWriter (unixSocket.getOutputStream ()) W.println ("GET / v1.24/containers/json HTTP/1.1"); w.println ("Host: http"); w.println ("Accept: * / *"); w.println (""); w.flush (); / / close Output, otherwise it will cause the following read operation to block unixSocket.shutdownOutput () / / get the returned result System.out.println ("- Docker Response -"); BufferedReader br = new BufferedReader (new InputStreamReader (unixSocket.getInputStream (); String line; while ((line = br.readLine ())! = null) {System.out.println (line);} unixSocket.close () } after reading the above, do you have any further understanding of how to use UnixSocket to call Docker API in Java? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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