From a014a0126fa72c9b1630c718d05f1652dfc13fb8 Mon Sep 17 00:00:00 2001
From: Georg Pfuetzenreuter
Date: Sun, 8 May 2022 15:03:42 +0200
Subject: Shell creation logic

Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
---
 .../java/net/libertacasa/pubsh/web/Docker.java     | 51 +++++++++++++++++-----
 1 file changed, 40 insertions(+), 11 deletions(-)

(limited to 'src/main/java/net/libertacasa/pubsh/web/Docker.java')

diff --git a/src/main/java/net/libertacasa/pubsh/web/Docker.java b/src/main/java/net/libertacasa/pubsh/web/Docker.java
index 9621978..a889703 100644
--- a/src/main/java/net/libertacasa/pubsh/web/Docker.java
+++ b/src/main/java/net/libertacasa/pubsh/web/Docker.java
@@ -11,11 +11,11 @@ import java.util.stream.Collectors;
 import com.github.dockerjava.api.DockerClient;
 import com.github.dockerjava.api.command.BuildImageResultCallback;
 import com.github.dockerjava.api.command.CreateContainerResponse;
-import com.github.dockerjava.api.command.InspectContainerResponse;
 import com.github.dockerjava.api.command.ListContainersCmd;
 import com.github.dockerjava.api.command.ListImagesCmd;
 import com.github.dockerjava.api.command.WaitContainerResultCallback;
 import com.github.dockerjava.api.model.Image;
+import com.github.dockerjava.api.model.SearchItem;
 import com.github.dockerjava.core.DefaultDockerClientConfig;
 import com.github.dockerjava.core.DockerClientConfig;
 import com.github.dockerjava.core.DockerClientImpl;
@@ -74,7 +74,7 @@ public class Docker {
 	
 	public static void deleteContainer(String id) {
 		Collection<String> stringifiedId = Arrays.asList(id);
-		System.out.println(id);
+		//System.out.println(id);
 		System.out.println(stringifiedId);
 		List<com.github.dockerjava.api.model.Container> containerQuery = dockerClient.listContainersCmd().withShowAll(false).withIdFilter(stringifiedId).exec();
 		//apparently listContainersCmd returns a bunch of garbled crap, hence the less ideal toString/contains
@@ -93,7 +93,6 @@ public class Docker {
 			dockerClient.stopContainerCmd(id).exec();
 		}
 
-		//System.out.println(containerQuery);
 		dockerClient.removeContainerCmd(id).exec();
 	}
 	
@@ -135,10 +134,15 @@ public class Docker {
 		
 	}
 	
-	public static String createContainer(String imgid) {
+	public static String createContainer(String name, String imgid) {
 		//String containerid = dockerClient.createContainerCmd(imgid).exec();
 		WaitContainerResultCallback resultCallback = new WaitContainerResultCallback();
-		CreateContainerResponse createContainerResponse = dockerClient.createContainerCmd(imgid).exec();
+		CreateContainerResponse createContainerResponse = dockerClient
+				.createContainerCmd(imgid)
+				.withName(name)
+				.withTty(true)
+				.withAttachStdin(true)
+				.exec();
 		dockerClient.waitContainerCmd(createContainerResponse.getId()).exec(resultCallback);
 		try {
 			resultCallback.awaitCompletion();
@@ -153,24 +157,49 @@ public class Docker {
 		return(containerid);
 	}
 	
-	public static String deleteShell(String user, String id) {
+	public static String createShell(String user, String os, Integer count) {
+		String name1 = user + "_" + os;
+		String name = name1 + "_" + count;
+		String imageid = null;
+		List<Image> imageQuery = Docker.getImages(user + ":" + os);
+
+		System.out.printf("Image query: %s\n", imageQuery);
+		
+		if (imageQuery.isEmpty()) {
+			System.out.println("No result, building new image.\n");
+			imageid = Docker.buildImage(user, os, count);
+		}		
+		if (! imageQuery.isEmpty()) {
+			System.out.println("Found existing image.\n");
+			Image image = imageQuery.get(0);
+			imageid = image.getId();
+		}				
+
+		String containerid = createContainer(name, imageid);
+		System.out.printf("Initialized shell with image ID %s and container ID %s\n", imageid, containerid);
+		return(containerid);
+	}
+	
+	public static Integer deleteShell(String user, String id) {
 		Docker.deleteContainer(id);
 		List<Image> images = Docker.getImages(user);
 		for (Image image : images) {
-			System.out.println(image.getLabels());
 			String imageid = image.getId();
 			System.out.println(imageid);
 			try {
+				try {
+					Thread.sleep(200);
+				} catch (InterruptedException e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
 				Docker.deleteImage(imageid);
 				System.out.println("Removed.");
 			} catch (com.github.dockerjava.api.exception.ConflictException exception) {
 				System.out.println("Still being used, skipping.");
 			}
-				
-			
 		}
-		
-		return("foo");
+		return(null);
 	}
 
 }
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