promtail-8.1: Build promtail for multi-arch

Signed-off-by: Rakshitha-Kamath <[email protected]>

Author: Rakshitha-Kamath

.tekton/promtail-8-1-pull-request.yaml

@@ -30,6 +30,9 @@ spec:
   - name: build-platforms
     value:
     - linux/x86_64
+    - linux/aarch64
+    - linux/s390x
+    - linux/ppc64le
   - name: dockerfile
     value: Dockerfile
   - name: path-context

.tekton/promtail-8-1-push.yaml

@@ -27,6 +27,9 @@ spec:
   - name: build-platforms
     value:
     - linux/x86_64
+    - linux/aarch64
+    - linux/s390x
+    - linux/ppc64le
   - name: dockerfile
     value: Dockerfile
   - name: path-context

Dockerfile

@@ -1,20 +1,31 @@
-#FROM brew.registry.redhat.io/rh-osbs/openshift-golang-builder:rhel_9_golang_1.21 AS builder
-FROM quay.io/projectquay/golang:1.24 AS builder
-COPY loki loki
-WORKDIR loki
+ARG REMOTE_SOURCE=loki
+ARG REMOTE_SOURCE_DIR=/go/app
+
+FROM --platform=$BUILDPLATFORM quay.io/projectquay/golang:1.21 AS builder
+
+# Build Arguments
+ARG REMOTE_SOURCE
+ARG REMOTE_SOURCE_DIR
+
+COPY $REMOTE_SOURCE $REMOTE_SOURCE_DIR
+WORKDIR $REMOTE_SOURCE_DIR
 RUN make clean && make BUILD_IN_CONTAINER=false promtail
 
 
-FROM registry.redhat.io/ubi9/ubi-micro
-# Standard Red Hat labels
+FROM --platform=$BUILDPLATFORM registry.redhat.io/ubi9/ubi-micro
+
+# Build Arguments
+ARG REMOTE_SOURCE
+ARG REMOTE_SOURCE_DIR
+
 LABEL com.redhat.component="promtail-container"
 LABEL name="promtail"
 LABEL version="v3.0.0"
 LABEL summary="Provides promtail container"
 LABEL io.k8s.display-name="Promtail container"
 LABEL maintainer="Guillaume Abrioux <[email protected]>"
 LABEL description="Responsible for gathering logs and sending them to Loki"
-COPY --from=builder go/loki/clients/cmd/promtail/promtail /usr/bin/promtail
-COPY --from=builder go/loki/clients/cmd/promtail/promtail-docker-config.yaml /etc/promtail/config.yml
+COPY --from=builder $REMOTE_SOURCE_DIR/clients/cmd/promtail/promtail /usr/bin/promtail
+COPY --from=builder $REMOTE_SOURCE_DIR/clients/cmd/promtail/promtail-docker-config.yaml /etc/promtail/config.yml
 ENTRYPOINT ["/usr/bin/promtail"]
 CMD ["-config.file=/etc/promtail/config.yml"]