Add CI images for dotnet/vscode-csharp integration tests

Author: dibarbet

CODEOWNERS

@@ -38,6 +38,7 @@ src/ubuntu/22.04/mlnet/ @dotnet/runtime-infrastructure @dotnet/dotnet-docker-rev
 src/ubuntu/22.04/opt/arm64v8/ @dotnet/runtime-infrastructure @dotnet/dotnet-docker-reviewers
 src/ubuntu/22.04/coredeps/amd64/ @dotnet/runtime-infrastructure @dotnet/dotnet-docker-reviewers
 src/ubuntu/22.04/amd64/ @dotnet/source-build @dotnet/dotnet-docker-reviewers
+src/ubuntu/**/vscode-csharp/ @dotnet/roslyn-ide @dotnet/dotnet-docker-reviewers
 src/ubuntu/*/Dockerfile @dotnet/source-build @dotnet/dotnet-docker-reviewers
 
 # common paths

src/ubuntu/24.04/vscode-csharp/amd64/Dockerfile

@@ -0,0 +1,14 @@
+ARG DOTNET_SDK_TAG
+FROM mcr.microsoft.com/dotnet/sdk:$DOTNET_SDK_TAG
+
+# Use the approved Azure-hosted Ubuntu mirror (per Network Isolation team guidance).
+RUN find /etc/apt -type f \( -name '*.sources' -o -name '*.list' \) -exec sed -i 's|//archive\.ubuntu\.com|//azure.archive.ubuntu.com|g' {} +
+
+# Dependencies for running VS Code integration tests.
+RUN apt-get update \
+    && apt-get install -y \
+        libasound2t64 \
+        libgtk-3-0 \
+        libnss3 \
+        xvfb \
+    && rm -rf /var/lib/apt/lists/*

src/ubuntu/26.04/net11.0/vscode-csharp/amd64/Dockerfile

@@ -0,0 +1,14 @@
+ARG DOTNET_SDK_TAG
+FROM mcr.microsoft.com/dotnet/sdk:$DOTNET_SDK_TAG
+
+# Use the approved Azure-hosted Ubuntu mirror (per Network Isolation team guidance).
+RUN find /etc/apt -type f \( -name '*.sources' -o -name '*.list' \) -exec sed -i 's|//archive\.ubuntu\.com|//azure.archive.ubuntu.com|g' {} +
+
+# Dependencies for running VS Code integration tests.
+RUN apt-get update \
+    && apt-get install -y \
+        libasound2t64 \
+        libgtk-3-0 \
+        libnss3 \
+        xvfb \
+    && rm -rf /var/lib/apt/lists/*

src/ubuntu/manifest.json

@@ -258,6 +258,57 @@
             }
           ]
         },
+        {
+          "productVersion": "8.0",
+          "platforms": [
+            {
+              "architecture": "amd64",
+              "dockerfile": "src/ubuntu/24.04/vscode-csharp/amd64",
+              "os": "linux",
+              "osVersion": "noble",
+              "tags": {
+                "ubuntu-24.04-net8.0-vscode-csharp-amd64": {}
+              },
+              "buildArgs": {
+                "DOTNET_SDK_TAG": "8.0-noble"
+              }
+            }
+          ]
+        },
+        {
+          "productVersion": "9.0",
+          "platforms": [
+            {
+              "architecture": "amd64",
+              "dockerfile": "src/ubuntu/24.04/vscode-csharp/amd64",
+              "os": "linux",
+              "osVersion": "noble",
+              "tags": {
+                "ubuntu-24.04-net9.0-vscode-csharp-amd64": {}
+              },
+              "buildArgs": {
+                "DOTNET_SDK_TAG": "9.0-noble"
+              }
+            }
+          ]
+        },
+        {
+          "productVersion": "10.0",
+          "platforms": [
+            {
+              "architecture": "amd64",
+              "dockerfile": "src/ubuntu/24.04/vscode-csharp/amd64",
+              "os": "linux",
+              "osVersion": "noble",
+              "tags": {
+                "ubuntu-24.04-net10.0-vscode-csharp-amd64": {}
+              },
+              "buildArgs": {
+                "DOTNET_SDK_TAG": "10.0-noble"
+              }
+            }
+          ]
+        },
         {
           "platforms": [
             {
@@ -270,6 +321,23 @@
             }
           ]
         },
+        {
+          "productVersion": "11.0",
+          "platforms": [
+            {
+              "architecture": "amd64",
+              "dockerfile": "src/ubuntu/26.04/net11.0/vscode-csharp/amd64",
+              "os": "linux",
+              "osVersion": "resolute",
+              "tags": {
+                "ubuntu-26.04-net11.0-vscode-csharp-amd64": {}
+              },
+              "buildArgs": {
+                "DOTNET_SDK_TAG": "11.0-preview"
+              }
+            }
+          ]
+        },
         {
           "platforms": [
             {