thediveo · thediveo · May 30, 2026 · May 26, 2026 · May 26, 2026 · May 26, 2026
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
@@ -1,10 +1,10 @@
 {
     "name": "TheDiveO's devcontainer features",
-    "image": "mcr.microsoft.com/devcontainers/base:ubuntu-24.04",
+    "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
     "features": {
-        "ghcr.io/devcontainers/features/node:1": {},
+        "ghcr.io/devcontainers/features/node:2": {},
         "./devcontainers-cli": {},
-        "ghcr.io/devcontainers/features/docker-in-docker:2": {
+        "ghcr.io/devcontainers/features/docker-in-docker:3": {
             "version": "latest",
             "moby": false // go for the upstream Docker-CE
         },

diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
@@ -17,24 +17,24 @@ jobs:
           - bpftool
           - cni-plugins
           - docsify
-          - grafanactl
-          - gocover
           - go-ebpf
           - go-mod-upgrade
+          - gocover
           - goreportcard
+          - grafanactl
           - lazygit
           - local-pkgsite
           - nerdctl
           - pin-github-action
           - pull-through-cache-registry
-          - wal-wahl
+          # - wal-wahl
         baseImage:
-          - mcr.microsoft.com/devcontainers/base:ubuntu-24.04
+          - mcr.microsoft.com/devcontainers/base:ubuntu
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # pin@v6
 
       - name: "install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli@0.84.1
 
       - name: "generating tests for '${{ matrix.features }}' against '${{ matrix.baseImage }}'"
-        run: devcontainer features test --skip-duplicated -f ${{ matrix.features }} -i ${{ matrix.baseImage }} .
+        run: devcontainer features test --skip-autogenerated --skip-duplicated -f ${{ matrix.features }} -i ${{ matrix.baseImage }} .
diff --git a/README.md b/README.md
@@ -16,7 +16,7 @@ doesn't support Alpine.
 | --------------------------- | ------ | ---- | ------ | ------ | ------ |
 | bpftool                     |  ✅    |  ✅  |  ✅    |  ✅    | ✅     |
 | cni-plugins                 |        |  ✅  |  ✅    |  ✅    | ✅     |
-| docsify                     |        |  ?   |  ✅    |  ?     | ✅     |
+| docsify                     |        |  ✅  |  ✅    |  ✅    | ✅     |
 | go-ebpf                     |        |  ✅  |  ✅    |  ✅    | ✅     |
 | go-mod-upgrade              |        |  ✅  |  ✅    |  ✅    | ✅     |
 | gocover                     |        |  ✅  |  ✅    |  ✅    | ✅     |

diff --git a/TESTING.md b/TESTING.md
@@ -5,7 +5,7 @@
 To test a particular devcontainer feature, say, `lazygit`:
 
 ```bash
-devcontainer features test -f lazygit -i mcr.microsoft.com/devcontainers/base:ubuntu -p .
+devcontainer features test -f lazygit --skip-autogenerated -i mcr.microsoft.com/devcontainers/base:ubuntu -p .
 ```
 
 - `--skip-scenarios` ... tests only the `test.sh` test case, but no scenario tests.

diff --git a/src/bpftool/README.md b/src/bpftool/README.md
@@ -1,7 +1,7 @@
 
 # bpftool (bpftool)
 
-Installs bpftool from upstream https://github.com/libbpf/bpftool binary releases.
+Installs bpftool binary from upstream https://github.com/libbpf/bpftool binary releases.
 
 ## Example Usage
 
@@ -15,7 +15,7 @@ Installs bpftool from upstream https://github.com/libbpf/bpftool binary releases
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| version | version of bpftool to install from upstream | string | latest |
+| version | version of bpftool binary to install from upstream | string | latest |
 
 ## OS Support
 

diff --git a/src/bpftool/devcontainer-feature.json b/src/bpftool/devcontainer-feature.json
@@ -1,13 +1,13 @@
 {
     "name": "bpftool",
     "id": "bpftool",
-    "version": "0.0.3",
-    "description": "Installs bpftool from upstream https://github.com/libbpf/bpftool binary releases.",
+    "version": "0.0.4",
+    "description": "Installs bpftool binary from upstream https://github.com/libbpf/bpftool binary releases.",
     "options": {
         "version": {
             "type": "string",
             "default": "latest",
-            "description": "version of bpftool to install from upstream"
+            "description": "version of bpftool binary to install from upstream"
         }
     }
 }
diff --git a/src/docsify/devcontainer-feature.json b/src/docsify/devcontainer-feature.json
@@ -1,7 +1,7 @@
 {
     "name": "docsify",
     "id": "docsify",
-    "version": "0.1.3",
+    "version": "0.2.0",
     "description": "Automatically serves ./docs (or another) workspace directory via 'docsify serve' in the background.",
     "options": {
         "port": {
@@ -24,7 +24,7 @@
         }
     },
     "dependsOn": {
-        "ghcr.io/devcontainers/features/node:1": {
+        "ghcr.io/devcontainers/features/node:2": {
             "version": "lts"
         }
     },

diff --git a/src/go-ebpf/NOTES.md b/src/go-ebpf/NOTES.md
@@ -1,3 +1,20 @@
+## Feature Dependency
+
+This feature has only a soft dependecy on `ghcr.io/devcontainers/features/go` so
+that you have full control over from where and how you bring in the go
+toolchain.
+
+For example:
+
+```json
+{
+    "features": {
+        "ghcr.io/devcontainers/features/go:1": {},
+        "ghcr.io/thediveo/devcontainer-features/go-ebpf:1": {}
+    }
+}
+```
+
 ## PID Namespace
 
 Depending on what your eBPF is doing inside the devcontainer (or inside a

diff --git a/src/go-ebpf/README.md b/src/go-ebpf/README.md
@@ -7,7 +7,7 @@ Installs clang and llvm, and on top Cilium's bpf2go.
 
 ```json
 "features": {
-    "ghcr.io/thediveo/devcontainer-features/go-ebpf:0": {}
+    "ghcr.io/thediveo/devcontainer-features/go-ebpf:1": {}
 }
 ```
 
@@ -23,6 +23,23 @@ Installs clang and llvm, and on top Cilium's bpf2go.
 
 - `ms-vscode.cpptools-extension-pack`
 
+## Feature Dependency
+
+This feature has only a soft dependecy on `ghcr.io/devcontainers/features/go` so
+that you have full control over from where and how you bring in the go
+toolchain.
+
+For example:
+
+```json
+{
+    "features": {
+        "ghcr.io/devcontainers/features/go:1": {},
+        "ghcr.io/thediveo/devcontainer-features/go-ebpf:1": {}
+    }
+}
+```
+
 ## PID Namespace
 
 Depending on what your eBPF is doing inside the devcontainer (or inside a

diff --git a/src/go-ebpf/devcontainer-feature.json b/src/go-ebpf/devcontainer-feature.json
@@ -1,7 +1,7 @@
 {
     "name": "Go ebpf development",
     "id": "go-ebpf",
-    "version": "0.0.1",
+    "version": "1.0.0",
     "description": "Installs clang and llvm, and on top Cilium's bpf2go.",
     "options": {
         "bfp2go-version": {
@@ -10,12 +10,9 @@
             "description": "version of bpf2go to install"
         }
     },
-    "dependsOn": {
-        "ghcr.io/devcontainers/features/go:1": {
-            "version": "latest",
-            "golangciLintVersion": "latest"
-        }
-    },
+    "installsAfter": [
+        "ghcr.io/devcontainers/features/go"
+    ],
     "customizations": {
         "vscode": {
             "extensions": [

diff --git a/src/go-mod-upgrade/NOTES.md b/src/go-mod-upgrade/NOTES.md
@@ -1,3 +1,26 @@
+## Feature Dependency
+
+This feature has only a soft dependecy on `ghcr.io/devcontainers/features/go` so
+that you have full control over from where and how you bring in the go
+toolchain.
+
+For example:
+
+```json
+{
+    "features": {
+        "ghcr.io/devcontainers/features/go:1": {},
+        "ghcr.io/thediveo/devcontainer-features/go-mod-upgrade:1": {}
+    }
+}
+```
+
+## `go-mod-upgrade` Command
+
+Please refer to the [upstream repository
+`@oligot/go-mod-upgrade`](https://github.com/oligot/go-mod-upgrade) for
+documentation.
+
 ## OS Support
 
 Tested only with

diff --git a/src/go-mod-upgrade/README.md b/src/go-mod-upgrade/README.md
@@ -7,11 +7,38 @@ upgrade outdated Go dependencies interactively.
 
 ```json
 "features": {
-    "ghcr.io/thediveo/devcontainer-features/go-mod-upgrade:0": {}
+    "ghcr.io/thediveo/devcontainer-features/go-mod-upgrade:1": {}
 }
 ```
 
+## Options
 
+| Options Id | Description | Type | Default Value |
+|-----|-----|-----|-----|
+| version | version of go-mod-upgrade to install | string | latest |
+
+## Feature Dependency
+
+This feature has only a soft dependecy on `ghcr.io/devcontainers/features/go` so
+that you have full control over from where and how you bring in the go
+toolchain.
+
+For example:
+
+```json
+{
+    "features": {
+        "ghcr.io/devcontainers/features/go:1": {},
+        "ghcr.io/thediveo/devcontainer-features/go-mod-upgrade:1": {}
+    }
+}
+```
+
+## `go-mod-upgrade` Command
+
+Please refer to the [upstream repository
+`@oligot/go-mod-upgrade`](https://github.com/oligot/go-mod-upgrade) for
+documentation.
 
 ## OS Support
 

diff --git a/src/go-mod-upgrade/devcontainer-feature.json b/src/go-mod-upgrade/devcontainer-feature.json
@@ -1,12 +1,22 @@
 {
     "name": "go-mod-upgrade",
     "id": "go-mod-upgrade",
-    "version": "0.1.1",
+    "version": "1.0.0",
     "description": "upgrade outdated Go dependencies interactively.",
-    "dependsOn": {
-        "ghcr.io/devcontainers/features/go:1": {
-            "version": "latest",
-            "golangciLintVersion": "latest"
+    "keywords": [
+        "go",
+        "mod",
+        "modules",
+        "dependencies"
+    ],
+    "options": {
+        "version": {
+            "type": "string",
+            "default": "latest",
+            "description": "version of go-mod-upgrade to install"
         }
-    }
+    },
+    "installsAfter": [
+        "ghcr.io/devcontainers/features/go"
+    ]
 }
diff --git a/src/go-mod-upgrade/install.sh b/src/go-mod-upgrade/install.sh
@@ -3,9 +3,11 @@ set -e
 
 echo "Activating feature 'go-mod-upgrade'..."
 
+VERSION="${VERSION:-"latest"}"
+
 mkdir -p /tmp/gotools
 export GOCACHE=/tmp/gotools/cache
 
-go install github.com/oligot/go-mod-upgrade@latest
+go install "github.com/oligot/go-mod-upgrade@${VERSION}"
 
 rm -rf /tmp/gotools
diff --git a/src/gocover/NOTES.md b/src/gocover/NOTES.md
@@ -1,3 +1,20 @@
+## Feature Dependency
+
+This feature has only a soft dependecy on `ghcr.io/devcontainers/features/go` so
+that you have full control over from where and how you bring in the go
+toolchain.
+
+For example:
+
+```json
+{
+    "features": {
+        "ghcr.io/devcontainers/features/go:1": {},
+        "ghcr.io/thediveo/devcontainer-features/gocover:1": {}
+    }
+}
+```
+
 ## `gocover` Command
 
 This feature installs a new `gocover` command into `/usr/local/bin`.
@@ -6,14 +23,14 @@ When run without any flags and arguments, `gocover` will run the unit tests
 using `go test` on all packages in the Go module in the workspace, and update
 the `README.md` file with a badge showing the coverage percentage.
 
-### CLI Flags
+### `gocover` CLI Flags
 
 | Flag | Meaning |
 | --- | --- |
 | `-r`, `-root`, `--root` | run tests additionally also as root. |
-| `-noroot`, `--no-root` | don't run tests also as root, even if feature was configured with root=true. |
+| `-noroot`, `--no-root` | don't run tests also as root, even if this feature was configured with `root`:`true`. |
 | `-html`, `--html` | additionally generate `coverage.html` |
-| `-nohtml`, `--no-html` | don't generate `coverage.html, even if feature was configured with html=true. |
+| `-nohtml`, `--no-html` | don't generate `coverage.html`, even if this feature was configured with `html`:`true`. |
 
 ### Positional Arguments