ci: Update GH release workflow

.github/workflows/release.yml

@@ -8,9 +8,10 @@ defaults:
 
 jobs:
 
-  release-docker:
-    name: "BigDipper Docker image"
-    runs-on: ubuntu-latest
+  release-docker-testnet:
+    name: "BigDipper Testnet Docker image"
+    runs-on: ubuntu-
+    if:  ${{ github.ref_name == 'chains/cheqd/testnet' }}
     env:
       IMAGE_NAME: ${{ github.repository }}
 
@@ -76,3 +77,73 @@ jobs:
 
       - name: Push BigDipper image
         run: docker image push --all-tags registry.digitalocean.com/${{ env.IMAGE_NAME }}
+
+  release-docker-mainnet:
+    name: "BigDipper Mainnet Docker image"
+    runs-on: ubuntu-latest
+    if:  ${{ github.ref_name == 'chains/cheqd/mainnet' }}
+    env:
+      IMAGE_NAME: ${{ github.repository }}
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+
+      - name: Set network name
+        id: set-network
+        run: echo NETWORK_NAME="${GITHUB_REF##*/}" >> "$GITHUB_OUTPUT"
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+        id: buildx
+        with:
+          install: true
+          version: latest
+
+      - name: Install DigitalOcean CLI
+        uses: digitalocean/action-doctl@v2
+        with:
+          token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
+
+      - name: Login to DigitalOcean Container Registry
+        run: doctl registry login --expiry-seconds 600
+
+      - name: Configure Docker image metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: registry.digitalocean.com/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=${{ steps.set-network.outputs.NETWORK_NAME }}-latest
+            type=sha,format=long
+          labels: |
+            org.opencontainers.image.description="BigDipper block explorer for cheqd network"
+            org.opencontainers.image.source="https://github.com/cheqd/big-dipper-2.0-cosmos"
+            org.opencontainers.image.vendor="Cheqd Foundation Limited"
+            org.opencontainers.image.created={{date 'dddd, MMMM Do YYYY, h:mm:ss a'}}
+            org.opencontainers.image.documentation="https://product.cheqd.io/"
+
+      - name: Build BigDipper image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: Dockerfile
+          platforms: linux/amd64
+          load: true
+          target: runner
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=min
+          build-args: |
+            BASE_PATH=/
+            NODE_ENV=production
+            NEXT_PUBLIC_CHAIN_TYPE=mainnet
+            NEXT_PUBLIC_GRAPHQL_URL=https://explorer-gql.cheqd.io/v1/graphql
+            NEXT_PUBLIC_GRAPHQL_WS=wss://explorer-gql.cheqd.io/v1/graphql
+            NEXT_PUBLIC_RPC_WEBSOCKET=wss://rpc.cheqd.net/websocket
+            PROJECT_NAME=web-cheqd
+
+      - name: Push BigDipper image
+        run: docker image push --all-tags registry.digitalocean.com/${{ env.IMAGE_NAME }}