diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
deleted file mode 100644
index dfabb91..0000000
--- a/.github/workflows/docker-publish.yml
+++ /dev/null
@@ -1,57 +0,0 @@
-name: Build and publish container
-
-on:
-  push:
-    branches: [main]
-    tags: ['v*']
-  pull_request:
-    branches: [main]
-
-env:
-  REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
-
-jobs:
-  build-and-push:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to GitHub Container Registry
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: |
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=sha
-            type=raw,value=latest,enable={{is_default_branch}}
-
-      - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index e371abb..18e1a29 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -12,7 +12,7 @@ jobs:
   release-please:
     runs-on: ubuntu-latest
     steps:
-      - uses: googleapis/release-please-action@v4
+      - uses: googleapis/release-please-action@45996ed1f6d02564a971a2fa1b5860e934307cf7 # v5.0.0
         with:
           config-file: release-please-config.json
           manifest-file: .release-please-manifest.json
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..302ee8f
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,126 @@
+name: Release Action
+
+on:
+  release:
+    types:
+      - published
+
+concurrency:
+  group: '${{ github.workflow }}'
+  cancel-in-progress: true
+
+jobs:
+  deploy_container:
+    name: Deploy Container
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+
+      - name: Get version number
+        id: version
+        env:
+          REF: ${{ github.ref }}
+        run: |
+          version="${REF##*/}"
+          if ! echo "$version" | grep -Eq '^v[0-9]+\.[0-9]+\.[0-9]+$'; then
+            echo "::error::Release tag '$version' is not a valid semver tag (vX.Y.Z)" >&2
+            exit 1
+          fi
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+
+      - name: Populate version.json
+        env:
+          VERSION: ${{ steps.version.outputs.version }}
+        run: |
+          hash=$(git rev-parse HEAD)
+          echo "{\"version\": {\"hash\": \"$hash\", \"version\": \"$VERSION\"}}" > ./version.json
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4.2.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7.2.0
+        with:
+          context: .
+          push: true
+          tags: "ghcr.io/${{ github.repository_owner }}/web-api:${{ steps.version.outputs.version }}"
+
+      - name: Update Terraform variable set
+        env:
+          TF_TOKEN: ${{ secrets.TERRAFORM_CLOUD_TOKEN }}
+          VARSET_ID: ${{ secrets.TERRAFORM_CLOUD_VARSET_ID }}
+          VAR_KEY: web_api_image_tag
+          VERSION: ${{ steps.version.outputs.version }}
+        run: |
+          variable_id=$(curl -sSL \
+            --header "Authorization: Bearer $TF_TOKEN" \
+            --header "Content-Type: application/vnd.api+json" \
+            --request GET \
+              "https://app.terraform.io/api/v2/varsets/$VARSET_ID/relationships/vars" \
+              | jq -r --arg k "$VAR_KEY" '.data[] | select(.attributes.key == $k) | .id')
+
+          if [ -z "$variable_id" ] || [ "$variable_id" = "null" ]; then
+            echo "::error::Variable '$VAR_KEY' not found in the configured variable set" >&2
+            exit 1
+          fi
+
+          curl -sSL \
+            --header "Authorization: Bearer $TF_TOKEN" \
+            --header "Content-Type: application/vnd.api+json" \
+            --request PATCH \
+            --data "$(jq -n --arg v "$VERSION" '{data: {type: "vars", attributes: {value: $v}}}')" \
+              "https://app.terraform.io/api/v2/varsets/$VARSET_ID/relationships/vars/$variable_id"
+
+      - name: Trigger Terraform apply
+        env:
+          TF_TOKEN: ${{ secrets.TERRAFORM_CLOUD_TOKEN }}
+          TF_ORG: ohf
+          TF_WORKSPACE: web-api
+          VERSION: ${{ steps.version.outputs.version }}
+        run: |
+          # The variable set update above does not queue a run on its own, so we
+          # create one explicitly and let Terraform Cloud apply it without manual
+          # confirmation. web-api is its own workspace/state, so this only
+          # deploys web-api — shared infrastructure is untouched.
+          workspace_id=$(curl -sSL \
+            --header "Authorization: Bearer $TF_TOKEN" \
+            --header "Content-Type: application/vnd.api+json" \
+            --request GET \
+              "https://app.terraform.io/api/v2/organizations/$TF_ORG/workspaces/$TF_WORKSPACE" \
+              | jq -r '.data.id')
+
+          if [ -z "$workspace_id" ] || [ "$workspace_id" = "null" ]; then
+            echo "::error::Could not resolve Terraform Cloud workspace '$TF_WORKSPACE'" >&2
+            exit 1
+          fi
+
+          run_id=$(curl -sSL \
+            --header "Authorization: Bearer $TF_TOKEN" \
+            --header "Content-Type: application/vnd.api+json" \
+            --request POST \
+            --data "$(jq -n --arg ws "$workspace_id" --arg v "$VERSION" '{
+              data: {
+                type: "runs",
+                attributes: {
+                  message: "Deploy web-api \($v) (release action)",
+                  "auto-apply": true
+                },
+                relationships: {
+                  workspace: { data: { type: "workspaces", id: $ws } }
+                }
+              }
+            }')" \
+              "https://app.terraform.io/api/v2/runs" \
+              | jq -r '.data.id')
+
+          if [ -z "$run_id" ] || [ "$run_id" = "null" ]; then
+            echo "::error::Failed to create Terraform Cloud run" >&2
+            exit 1
+          fi
+
+          echo "Triggered Terraform Cloud run $run_id (auto-apply) for $TF_WORKSPACE"