fix: fail on missing buildx, use docker wrapper, and fix get_epoch.sh

Revert the graceful buildx skip — missing buildx is a real failure.
Move WSL+Docker setup before task init and create a docker wrapper
script that routes all docker commands through WSL, so task init and
task build work transparently. Also use task build instead of manual
docker commands. Fix get_epoch.sh to use bash directly (uv run can't
execute .sh files on Windows).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: JonZeolla

.github/workflows/ci.yml

@@ -217,6 +217,31 @@ jobs:
           }
 
           Write-Host "Windows smoke test passed: project generated and verified successfully"
+      - name: Setup WSL with Docker
+        shell: bash
+        run: |
+          wsl --install -d Ubuntu-24.04 --no-launch
+          wsl -d Ubuntu-24.04 -u root -- bash -ec "
+            apt-get update -qq
+            apt-get install -y -qq curl ca-certificates >/dev/null
+            curl -fsSL https://get.docker.com | sh -s -- --quiet
+            service docker start
+          "
+
+          # Create a docker wrapper so Task commands use WSL's Docker.
+          # Pass --cd with the converted CWD so docker build contexts resolve.
+          mkdir -p "$HOME/bin"
+          cat > "$HOME/bin/docker" << 'WRAPPER'
+          #!/bin/bash
+          # Convert Windows CWD to WSL /mnt/ path
+          win_cwd="$(pwd -W 2>/dev/null || pwd)"
+          drive="$(echo "${win_cwd:0:1}" | tr '[:upper:]' '[:lower:]')"
+          rest="${win_cwd:3}"
+          wsl_cwd="/mnt/$drive/$(echo "$rest" | tr '\\' '/')"
+          exec wsl -d Ubuntu-24.04 -u root --cd "$wsl_cwd" -- docker "$@"
+          WRAPPER
+          chmod +x "$HOME/bin/docker"
+          echo "$HOME/bin" >> "$GITHUB_PATH"
       - name: Initialize generated project
         shell: bash
         run: |
@@ -229,37 +254,16 @@ jobs:
         run: |
           cd "$RUNNER_TEMP/replace-me"
           task -v unit-test
-      - name: Setup WSL with Docker
-        shell: bash
-        run: |
-          wsl --install -d Ubuntu-24.04 --no-launch
-          wsl -d Ubuntu-24.04 -u root -- bash -ec "
-            apt-get update -qq
-            apt-get install -y -qq curl ca-certificates >/dev/null
-            curl -fsSL https://get.docker.com | sh -s -- --quiet
-            service docker start
-            docker buildx create --use
-          "
       - name: Build Docker image
-        shell: pwsh
+        shell: bash
         run: |
-          # Convert Windows path to WSL path (e.g. D:\a\_temp → /mnt/d/a/_temp)
-          $drive = "$env:RUNNER_TEMP"[0].ToString().ToLower()
-          $rest = "$env:RUNNER_TEMP".Substring(3).Replace('\', '/')
-          $wslProject = "/mnt/$drive/$rest/replace-me"
-          Write-Host "Building from WSL path: $wslProject"
-          wsl -d Ubuntu-24.04 -u root --cd $wslProject -- docker buildx build `
-            --platform linux/amd64 `
-            --pull --load `
-            --build-arg NAME=replace_me `
-            --build-arg "DESCRIPTION=A brief description of the project" `
-            --build-arg COMMIT_HASH=smoke-test `
-            -t zenable-io/replace-me:latest .
+          cd "$RUNNER_TEMP/replace-me"
+          task -v build
       - name: Verify Docker image
-        shell: pwsh
+        shell: bash
         run: |
-          wsl -d Ubuntu-24.04 -u root -- docker run --rm --entrypoint python3 `
-            zenable-io/replace-me:latest `
+          docker run --rm --entrypoint python3 \
+            zenable-io/replace-me:latest \
             -c "from replace_me import __version__; print(__version__)"
       - name: Verify zenable CLI
         shell: bash

{{cookiecutter.project_name|replace(" ", "")}}/Taskfile.yml

@@ -60,13 +60,7 @@ tasks:
       # This fixes an "ERROR: Multiple platforms feature is currently not supported for docker driver" pipeline error
       # Only create our multiplatform builder if it doesn't already exist; otherwise list information about the one that exists
       # It suppresses the inspect output when it's not running in a GitHub Action
-      # Skip gracefully if docker buildx is not available (e.g. Windows without buildx plugin)
-      - |
-        if ! docker buildx version > /dev/null 2>&1; then
-          echo "docker buildx not available, skipping multiplatform setup"
-          exit 0
-        fi
-        docker buildx inspect multiplatform {{ '{{if ne .GITHUB_ACTIONS "true"}}' }}>/dev/null{{ '{{end}}' }} || docker buildx create --name multiplatform --driver docker-container --use
+      - docker buildx inspect multiplatform {{ '{{if ne .GITHUB_ACTIONS "true"}}' }}>/dev/null{{ '{{end}}' }} || docker buildx create --name multiplatform --driver docker-container --use
 
   init:
     desc: Initialize the repo for local use; intended to be run after git clone
@@ -94,7 +88,7 @@ tasks:
       TIMESTAMP:
         sh: '{{ '{{.RUN_SCRIPT}}' }} {{ '{{.SCRIPTS_DIR}}' }}/get_rfc3339_timestamp.py'
       EPOCH:
-        sh: '{{ '{{.RUN_SCRIPT}}' }} {{ '{{.SCRIPTS_DIR}}' }}/get_epoch.sh'
+        sh: 'bash {{ '{{.SCRIPTS_DIR}}' }}/get_epoch.sh'
       COMMIT_HASH:
         sh: git rev-parse HEAD
       BUILD_PLATFORM: '{{ '{{if eq .PLATFORM "all"}}' }}{{ '{{.SUPPORTED_PLATFORMS}}' }}{{ '{{else if .PLATFORM}}' }}{{ '{{.PLATFORM}}' }}{{ '{{else}}' }}{{ '{{.LOCAL_PLATFORM}}' }}{{ '{{end}}' }}'