chore: container build maintenance (#6316)

.github/actions/bootstrap-buildkit/action.yml

@@ -125,4 +125,15 @@ runs:
       shell: bash
       run: |
         echo "Bootstrapping buildkit..."
-        docker buildx inspect ${{ inputs.builder_name }}  --bootstrap
+        for i in 1 2 3; do
+          if docker buildx inspect ${{ inputs.builder_name }} --bootstrap; then
+            echo "Bootstrap succeeded on attempt $i"
+            break
+          fi
+          if [ "$i" -eq 3 ]; then
+            echo "::error::Bootstrap failed after 3 attempts"
+            exit 1
+          fi
+          echo "::warning::Bootstrap attempt $i failed, retrying in 10s..."
+          sleep 10
+        done

.github/actions/docker-remote-build/action.yml

@@ -107,8 +107,7 @@ runs:
         # TODO: Fix this - Skip cache for frontend target - a different docker driver is used for the EPP build, which causes issues with cache export
         CACHE_ARGS=""
         if [[ "${{ inputs.target }}" != "frontend" ]]; then
-          CACHE_ARGS="--cache-to type=inline "
-          CACHE_ARGS+="--cache-from type=registry,ref=${ECR_HOSTNAME}/ai-dynamo/dynamo:${{ inputs.framework }}-cuda${CUDA_VERSION_MAJOR}-${PLATFORM}-cache "
+          CACHE_ARGS="--cache-from type=registry,ref=${ECR_HOSTNAME}/ai-dynamo/dynamo:${{ inputs.framework }}-cuda${CUDA_VERSION_MAJOR}-${PLATFORM}-cache "
           CACHE_ARGS+="--cache-from type=registry,ref=${ECR_HOSTNAME}/ai-dynamo/dynamo:main-${{ inputs.framework }}-cuda${CUDA_VERSION_MAJOR}-${PLATFORM} "
           CACHE_ARGS+="--cache-from type=registry,ref=${ECR_HOSTNAME}/ai-dynamo/dynamo:release-${{ inputs.framework }}-cuda${CUDA_VERSION_MAJOR}-${PLATFORM}-cache "
           if [[ "$GITHUB_REF_NAME" =~ ^release ]]; then

.github/scripts/route_buildkit.sh

@@ -20,25 +20,30 @@
 # business hours) gets the HEAVIEST workload (vllm/sglang-cuda12).
 #
 # Flavors are routed to BuildKit pods using modulo 3 on the pod index:
-#   - Pool 0 (idx % 3 == 0): trtllm-cuda13, general      (lightest - offsets overnight fallback load)
-#   - Pool 1 (idx % 3 == 1): vllm-cuda13, sglang-cuda13  (share cuda-dl-base + wheel_builder cache)
-#   - Pool 2 (idx % 3 == 2): vllm-cuda12, sglang-cuda12  (heaviest - only active during business hours)
+#   - Pool 0 (idx % 3 == 0): trtllm (any CUDA), general   (lightest - offsets overnight fallback load)
+#   - Pool 1 (idx % 3 == 1): vllm-cuda13, sglang-cuda13   (share cuda-dl-base + wheel_builder cache)
+#   - Pool 2 (idx % 3 == 2): vllm-cuda12, sglang-cuda12   (heaviest - only active during business hours)
+#   Note: Unrecognized route keys (e.g. trtllm-cuda12) fall through to pool 0 via wildcard.
+#
+# SELECTION: From the candidate pool, ONE pod is randomly selected and its
+# tcp:// address is written to $GITHUB_OUTPUT.
 #
 # FALLBACK: If no pods match the target pool, the highest available index is used.
 #
-# EXPECTED ROUTING TABLE (pod indices returned for each flavor):
-# +------+---------------+---------+-------------+---------------+-------------+---------------+
-# | Pods | trtllm-cuda13 | general | vllm-cuda13 | sglang-cuda13 | vllm-cuda12 | sglang-cuda12 |
-# |      | (mod 0)       | (mod 0) | (mod 1)     | (mod 1)       | (mod 2)     | (mod 2)       |
-# +------+---------------+---------+-------------+---------------+-------------+---------------+
-# |  1   | 0             | 0       | 0 (fb)      | 0 (fb)        | 0 (fb)      | 0 (fb)        |
-# |  2   | 0             | 0       | 1           | 1             | 1 (fb)      | 1 (fb)        |
-# |  3   | 0             | 0       | 1           | 1             | 2           | 2             |
-# |  4   | 0, 3          | 0, 3    | 1           | 1             | 2           | 2             |
-# |  5   | 0, 3          | 0, 3    | 1, 4        | 1, 4          | 2           | 2             |
-# |  6   | 0, 3          | 0, 3    | 1, 4        | 1, 4          | 2, 5        | 2, 5          |
-# +------+---------------+---------+-------------+---------------+-------------+---------------+
-# (fb) = fallback - no pods matched target pool, returns max available index
+# CANDIDATE POOL TABLE (one pod is randomly selected from the candidate set):
+# +------+---------------------+---------+---------------+---------------+---------------+---------------+
+# | Pods | trtllm (any cuda)   | general | vllm-cuda13   | sglang-cuda13 | vllm-cuda12   | sglang-cuda12 |
+# |      | (pool 0, mod 0)     | (pool 0)| (pool 1,mod 1)| (pool 1,mod 1)| (pool 2,mod 2)| (pool 2,mod 2)|
+# +------+---------------------+---------+---------------+---------------+---------------+---------------+
+# |  1   | {0}                 | {0}     | {0} (fb)      | {0} (fb)      | {0} (fb)      | {0} (fb)      |
+# |  2   | {0}                 | {0}     | {1}           | {1}           | {1} (fb)      | {1} (fb)      |
+# |  3   | {0}                 | {0}     | {1}           | {1}           | {2}           | {2}           |
+# |  4   | {0, 3}              | {0, 3}  | {1}           | {1}           | {2}           | {2}           |
+# |  5   | {0, 3}              | {0, 3}  | {1, 4}        | {1, 4}        | {2}           | {2}           |
+# |  6   | {0, 3}              | {0, 3}  | {1, 4}        | {1, 4}        | {2, 5}        | {2, 5}        |
+# +------+---------------------+---------+---------------+---------------+---------------+---------------+
+# {x, y} = candidate pool; ONE pod is randomly selected from this set
+# (fb)    = no pods in target pool; falls back to highest available index
 #
 # =============================================================================
 
@@ -142,7 +147,7 @@ if ! command -v nslookup &> /dev/null; then
 fi
 
 # --- RETRY CONFIGURATION ---
-MAX_RETRIES=${MAX_RETRIES:-8}
+MAX_RETRIES=${MAX_RETRIES:-2}
 RETRY_DELAY=${RETRY_DELAY:-30}
 # ---------------------------
 

aiconfigurator @ 7c08d2f2

-Subproject commit 7c08d2f2c4e289afe49f48e56d392a7d7221155d

container/templates/sglang_runtime.Dockerfile

@@ -84,12 +84,13 @@ RUN --mount=type=cache,target=/root/.cache/pip,sharing=locked \
 COPY --chmod=775 --chown=dynamo:0 benchmarks/ /workspace/benchmarks/
 
 # Install common and test dependencies as root
-RUN --mount=type=bind,source=.,target=/mnt/local_src \
+RUN --mount=type=bind,source=container/deps/requirements.txt,target=/tmp/deps/requirements.txt \
+    --mount=type=bind,source=container/deps/requirements.test.txt,target=/tmp/deps/requirements.test.txt \
     --mount=type=cache,target=/root/.cache/pip,sharing=locked \
     export PIP_CACHE_DIR=/root/.cache/pip && \
     pip install --break-system-packages \
-        --requirement /mnt/local_src/container/deps/requirements.txt \
-        --requirement /mnt/local_src/container/deps/requirements.test.txt \
+        --requirement /tmp/deps/requirements.txt \
+        --requirement /tmp/deps/requirements.test.txt \
         sglang==${SGLANG_VERSION} && \
     cd /workspace/benchmarks && \
     pip install --break-system-packages . && \