how to execute docker commands through Java program
10,966
Solution 1
To overcome the error you're facing, you should use "-i" instead of "-it". The -t arg tells docker to allocate a pseudo tty.
Having said that, I agree with Florian, you should use the docker remote api. https://docs.docker.com/engine/reference/api/docker_remote_api/
Solution 2
You can use docker client for java (e.g. https://github.com/spotify/docker-client). Here is example of usage:
public void startContainer(String containerId) throws Exception {
final DockerClient docker = DefaultDockerClient.builder()
.uri(URI.create("https://192.168.64.3:2376"))
.dockerCertificates(new DockerCertificates(Paths.get("/Users/d.romashov/.docker/machine/machines/dinghy")))
.build();
docker.startContainer(containerId);
}
Comments
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Chris Tien almost 2 years
Instead of calling Docker remote APIs, I need develop a program which just talks to Docker Linux Client (not Docker daemon). Here is my code
try { String[] command = {"docker", "run", "-it", "tomcat:9", "bash"}; ProcessBuilder pb = new ProcessBuilder(command); pb.inheritIO(); Process proc = pb.start(); InputStream is = proc.getInputStream(); OutputStream os = proc.getOutputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(is)); BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os)); writer.write("pwd"); writer.flush(); String line = ""; while ((line = reader.readLine()) != null) { System.out.print(line + "\n"); } proc.waitFor(); } catch (Exception e) { e.printStackTrace(); }
I always get errors. If I use "-it", it will says "cannot enable tty mode on non tty input", if I use "-i", I will get a Stream Closed Exception.
Is there any way to solve this problem?