Add ARM builds of Prometheus for 2.6.1

Signed-off-by: Radoslav Dimitrov <dimitrovr@vmware.com>

contrib/alertmanager-arm64/0.15.0/Makefile

@@ -4,4 +4,4 @@ ci-arm64-build:
 
 .PHONY: ci-arm64-push
 ci-arm64-push:
-	docker push functions/alertmanager:0.15.0-arm64
\ No newline at end of file
+	docker push functions/alertmanager:0.15.0-arm64

contrib/alertmanager-armhf/0.15.0/Makefile

@@ -4,4 +4,4 @@ ci-armhf-build:
 
 .PHONY: ci-armhf-push
 ci-armhf-push:
-	docker push functions/alertmanager:0.15.0-armhf
\ No newline at end of file
+	docker push functions/alertmanager:0.15.0-armhf

contrib/prometheus-arm64/2.6.1/Dockerfile

+FROM alpine:3.8
+WORKDIR /root/
+
+RUN apk add --update libarchive-tools curl \
+    && curl -sLf https://github.com/prometheus/prometheus/releases/download/v2.6.1/prometheus-2.6.1.linux-arm64.tar.gz > prometheus.tar.gz \
+    && bsdtar -xvf prometheus.tar.gz -C ./ --strip-components=1 \
+    && apk del libarchive-tools curl \
+    && mkdir /etc/prometheus \
+    && mkdir -p /usr/share/prometheus \
+    && cp prometheus                             /bin/prometheus \
+    && cp promtool                               /bin/promtool \
+    && cp prometheus.yml  				/etc/prometheus/ \
+    && cp -r console_libraries                     /usr/share/prometheus/ \
+    && cp -r consoles                              /usr/share/prometheus/ \
+    && rm -rf /root/*
+
+RUN ln -s /usr/share/prometheus/console_libraries /usr/share/prometheus/consoles/ /etc/prometheus/
+RUN mkdir -p /prometheus && \
+    chown -R nobody:nogroup /etc/prometheus /prometheus
+
+USER       nobody
+EXPOSE     9090
+VOLUME     [ "/prometheus" ]
+WORKDIR    /prometheus
+
+ENTRYPOINT [ "/bin/prometheus" ]
+CMD        [ "--config.file=/etc/prometheus/prometheus.yml", \
+    "--storage.tsdb.path=/prometheus", \
+    "--web.console.libraries=/usr/share/prometheus/console_libraries", \
+    "--web.console.templates=/usr/share/prometheus/consoles" ]
+

contrib/prometheus-arm64/2.6.1/Makefile

+.PHONY: ci-arm64-build
+ci-arm64-build:
+	docker build -t functions/prometheus:2.6.1-arm64 .
+
+.PHONY: ci-arm64-push
+ci-arm64-push:
+	docker push functions/prometheus:2.6.1-arm64

contrib/prometheus-arm64/2.6.1/README.md

+# Prometheus for ARM64
+
+## Building:
+
+```bash
+make ci-arm64-build
+```
+
+## Pushing:
+
+```bash
+make ci-arm64-push
+```

contrib/prometheus-armhf/2.6.1/Dockerfile

+FROM alpine:3.8
+WORKDIR /root/
+
+RUN apk add --update libarchive-tools curl \
+    && curl -sLf https://github.com/prometheus/prometheus/releases/download/v2.6.1/prometheus-2.6.1.linux-armv7.tar.gz > prometheus.tar.gz \
+    && bsdtar -xvf prometheus.tar.gz -C ./ --strip-components=1 \
+    && apk del libarchive-tools curl \
+    && mkdir /etc/prometheus \
+    && mkdir -p /usr/share/prometheus \
+    && cp prometheus                             /bin/prometheus \
+    && cp promtool                               /bin/promtool \
+    && cp prometheus.yml  				/etc/prometheus/ \
+    && cp -r console_libraries                     /usr/share/prometheus/ \
+    && cp -r consoles                              /usr/share/prometheus/ \
+    && rm -rf /root/*
+
+RUN ln -s /usr/share/prometheus/console_libraries /usr/share/prometheus/consoles/ /etc/prometheus/
+RUN mkdir -p /prometheus && \
+    chown -R nobody:nogroup /etc/prometheus /prometheus
+
+USER       nobody
+EXPOSE     9090
+VOLUME     [ "/prometheus" ]
+WORKDIR    /prometheus
+
+ENTRYPOINT [ "/bin/prometheus" ]
+CMD        [ "--config.file=/etc/prometheus/prometheus.yml", \
+    "--storage.tsdb.path=/prometheus", \
+    "--web.console.libraries=/usr/share/prometheus/console_libraries", \
+    "--web.console.templates=/usr/share/prometheus/consoles" ]
+

contrib/prometheus-armhf/2.6.1/Makefile

+.PHONY: ci-armhf-build
+ci-armhf-build:
+	docker build -t functions/prometheus:2.6.1-armhf .
+
+.PHONY: ci-armhf-push
+ci-armhf-push:
+	docker push functions/prometheus:2.6.1-armhf

contrib/prometheus-armhf/2.6.1/README.md

+# Prometheus for ARMHF
+
+## Building:
+
+```bash
+make ci-armhf-build
+```
+
+## Pushing:
+
+```bash
+make ci-armhf-push
+```