[openwrt/openwrt] devcontainer: Add development environment for gihub codespace

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/ed5dbbc129c2d163e88729ea0513a77f4611140d

commit ed5dbbc129c2d163e88729ea0513a77f4611140d
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Sat Jul 1 19:56:57 2023 +0200

    devcontainer: Add development environment for gihub codespace
    
    This adds a configuration for github codespace using our buildbot
    container. This allows users to start VS code in the browser using the
    buildbot build container.
    
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 .devcontainer/ci-env/devcontainer.json | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.devcontainer/ci-env/devcontainer.json b/.devcontainer/ci-env/devcontainer.json
new file mode 100644
index 0000000000..23b0555e66
--- /dev/null
+++ b/.devcontainer/ci-env/devcontainer.json
@@ -0,0 +1,12 @@
+{
+  "name": "CI build container",
+  "image": "ghcr.io/openwrt/buildbot/buildworker-v3.8.0:v9",
+  "features": {
+  },
+  "remoteUser": "buildbot",
+  "customizations": {
+    "vscode": {
+      "extensions": ["ms-vscode.cpptools", "plorefice.devicetree"]
+    }
+  }
+}