From f105d0e1ab01fca7a04f54a8cacf6372a5b2d6c0 Mon Sep 17 00:00:00 2001
From: Georg Pfuetzenreuter
Date: Sun, 8 May 2022 04:16:19 +0200
Subject: User/Admin logic

Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
---
 .../java/net/libertacasa/pubsh/web/Docker.java     | 42 +++++++++++++++++-----
 1 file changed, 33 insertions(+), 9 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 ccac8bf..00341a6 100644
--- a/src/main/java/net/libertacasa/pubsh/web/Docker.java
+++ b/src/main/java/net/libertacasa/pubsh/web/Docker.java
@@ -6,11 +6,14 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 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.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.core.DefaultDockerClientConfig;
@@ -44,15 +47,28 @@ public class Docker {
 		return imageList;
 	}
 	
-	public static List<Image> getImages() {
+	public static List<Image> getImages(String name) {		
 		List<Image> imageQuery;
-		imageQuery = dockerClient.listImagesCmd().exec();
+		ListImagesCmd imageQueryCmd = dockerClient.listImagesCmd();
+				
+		if (name != null) {
+			imageQueryCmd.getFilters().put("reference", Arrays.asList(name + "*")); //to-do: filter by nameshX instead
+		}
+		
+		imageQuery = imageQueryCmd.exec();
 		return imageQuery;
-	}	
+	}
 	
-	public static List<com.github.dockerjava.api.model.Container> getContainers() {
-		List<com.github.dockerjava.api.model.Container> containerQuery;
-		containerQuery = dockerClient.listContainersCmd().withShowAll(true).exec();
+	public static List<com.github.dockerjava.api.model.Container> getContainers(String name) {
+		List<com.github.dockerjava.api.model.Container> containerQuery;	
+		ListContainersCmd containerQueryCmd = dockerClient.listContainersCmd();
+		
+		if (name != null) {
+			containerQueryCmd.getFilters().put("name", Arrays.asList(name + "*"));
+		}
+		
+		containerQuery = containerQueryCmd.withShowAll(true).exec();
+		
 		return containerQuery;
 	}
 	
@@ -99,11 +115,19 @@ public class Docker {
 	}
 	
 	public static void deleteImage(String username, String id) {
-		List<Image> imagequery = Docker.getImages();
+		List<Image> imagequery = Docker.getImages(null);
 
 		if (imagequery.toString().contains(id)) {
-			System.out.printf("Found image ID %s, deleting ...\n", id);
-			dockerClient.removeImageCmd(id).withImageId(id).exec();
+			try {
+				System.out.printf("Found image ID %s, deleting ...\n", id);
+				dockerClient.removeImageCmd(id).withImageId(id).exec();
+			} catch (com.github.dockerjava.api.exception.ConflictException exception) {
+				System.out.println("Image is still being used by a container.");
+				throw exception;
+			}
+			//needs to wait for callback, but there is none
+			//System.out.printf("%s", removeQuery);
+
 		}
 		if (! imagequery.toString().contains(id)) {
 			System.out.printf("Image ID %s not found.\n", id);
-- 
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