Add multiple kubernetes tools and re-organized Dockerfile

.devcontainer/example/devcontainer.json

@@ -24,8 +24,9 @@
 
   // Mount the workspace into /workspace inside the container.
   // This is where VS Code will open the terminal and where your files live.
-  "workspaceFolder": "/workspace",
-  "workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,consistency=cached",
+  // Use this when you need to override the default mount behavior
+  // "workspaceFolder": "/workspace",
+  // "workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,consistency=cached",
 
   // Mount credentials read-only so tooling inside the container can use them.
   // These are never copied into the image — they exist only in the live session.

.env.example

@@ -1,7 +1,7 @@
 # =============================================================================
 # DevOps Toolbox — Local Build Environment
 # =============================================================================
-# This file documents all ARG values available for local Docker builds.
+# This file documents all values available for local Docker builds.
 # It is committed to the repository as a reference — it contains no secrets.
 #
 # USAGE:
@@ -10,7 +10,7 @@
 #   3. Build using:
 #
 #      docker build \
-#        $(grep -v '^#' .env | grep -v '^$' | sed 's/^/--build-arg /') \
+#        $(grep -v '^#' .env | grep -v '^$' | sed 's/^/--build-/') \
 #        -t devops-toolbox:local .
 #
 # VERSION REFERENCE:
@@ -23,19 +23,25 @@
 # =============================================================================
 
 # Cloud cli tools
-ARG AWS_CLI_VERSION=2.34.28
-ARG AZURE_CLI_VERSION=2.85.0
-ARG GCLOUD_VERSION=564.0.0
-ARG GH_VERSION=2.89.0
+AWS_CLI_VERSION=2.34.28
+AZURE_CLI_VERSION=2.85.0
+GCLOUD_VERSION=564.0.0
+GH_VERSION=2.89.0
 
-# Containerization tools
-ARG K9S_VERSION=v0.50.18
-ARG KUBECTL_VERSION=v1.35.3
+# Kubernetes tools
+K9S_VERSION=v0.50.18
+KUBECTL_VERSION=v1.35.3
+# The kubeseal version specifically does NOT have the v prefix
+KUBESEAL_VERSION=0.36.6
+HELM_VERSION=v4.1.4
+KUBELOGIN_VERSION=v0.2.17
+KUSTOMIZE_VERSION=v5.8.1
+STERN_VERSION=v1.33.1
 
 # Infrastructure as code tools
-ARG ANSIBLE_VERSION=13.5.0
-ARG TERRAFORM_VERSION=1.14.8
+ANSIBLE_VERSION=13.5.0
+TERRAFORM_VERSION=1.14.8
 
 # Programming languages
-ARG DOTNET_VERSION=10.0.201
-ARG PYTHON_VERSION=3.12
+DOTNET_VERSION=10.0.201
+PYTHON_VERSION=3.12