Added IMDS emulator container.

sts-agent/Dockerfile

@@ -1,25 +0,0 @@
-FROM ubuntu:18.04 AS grte
-
-ARG DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends build-essential gawk bison python3 git texinfo ca-certificates \
-    && rm -rf /var/lib/apt/lists/*
-
-# GRTE v5 source, Google's glibc 2.27
-RUN git clone --depth 1 https://third-party-mirror.googlesource.com/GRTEv5 /src
-
-# Build the libraries into the library directory searched by the GRTE v5 loader
-WORKDIR /build
-RUN printf 'slibdir=/usr/grte/v5/lib64\nrtlddir=/usr/grte/v5/lib64\n' > configparms \
-    && /src/google3/third_party/grte/v5_src/glibc-2.27/configure \
-        --prefix=/usr/grte/v5 \
-        --libdir=/usr/grte/v5/lib64 \
-        --disable-werror \
-        --enable-kernel=3.2 \
-    && make -j"$(nproc)" \
-    && make install DESTDIR=/out
-
-FROM gcr.io/cloud-ingest/tsop-agent:latest
-
-# GRTE v5 shared libraries matching the GRTE v5 glibc the launcher is statically linked with.
-COPY --from=grte /out/usr/grte/v5/lib64/ /usr/grte/v5/lib64/

sts-agent/compose.yaml

@@ -1,14 +1,25 @@
 services:
-  sts-agent:
-    build: .
-    ulimits:
-      memlock: 64000000
+  imds-emulator:
+    build: ../imds-emulator
     volumes:
-      - /mnt/ext-storage:/mnt/ext-storage:ro
       - /etc/sts-agent:/etc/sts-agent:ro
     environment:
       GOOGLE_APPLICATION_CREDENTIALS: /etc/sts-agent/cred.json
       GOOGLE_API_CERTIFICATE_CONFIG: /etc/sts-agent/certificate_config.json
+      PROJECT_ID: ${PROJECT_ID}
+      PROJECT_NUMBER: ${PROJECT_NUMBER}
+
+  sts-agent:
+    image: gcr.io/cloud-ingest/tsop-agent:latest
+    depends_on:
+      - imds-emulator
+    ulimits:
+      memlock: 64000000
+    volumes:
+      - /mnt/ext-storage:/mnt/ext-storage:ro
+    environment:
+      GCE_METADATA_HOST: imds-emulator
+      GCE_METADATA_IP: imds-emulator
     command:
       - --project-id=${PROJECT_ID}
       - --hostname=${HOSTNAME}