diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..6897188 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,12 @@ +ARG ARCH="amd64" +ARG OS="linux" +FROM quay.io/prometheus/busybox-${OS}-${ARCH}:latest +LABEL maintainer="The Prometheus Authors " + +ARG ARCH="amd64" +ARG OS="linux" +COPY .build/${OS}-${ARCH}/ecs_exporter /bin/ecs_exporter + +EXPOSE 9779 +USER nobody +ENTRYPOINT [ "/bin/ecs_exporter" ] diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..86f317b --- /dev/null +++ b/Makefile @@ -0,0 +1,10 @@ +# Ensure that 'all' is the default target otherwise it will be the first target from Makefile.common. +all:: + +# Needs to be defined before including Makefile.common to auto-generate targets +DOCKER_ARCHS ?= amd64 arm64 +DOCKER_REPO ?= prometheuscommunity + +include Makefile.common + +DOCKER_IMAGE_NAME ?= ecs-exporter diff --git a/Makefile.common b/Makefile.common new file mode 100644 index 0000000..99e8f9f --- /dev/null +++ b/Makefile.common @@ -0,0 +1,317 @@ +# Copyright 2018 The Prometheus Authors +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +# A common Makefile that includes rules to be reused in different prometheus projects. +# !!! Open PRs only against the prometheus/prometheus/Makefile.common repository! + +# Example usage : +# Create the main Makefile in the root project directory. +# include Makefile.common +# customTarget: +# @echo ">> Running customTarget" +# + +# Ensure GOBIN is not set during build so that promu is installed to the correct path +unexport GOBIN + +GO ?= go +GOFMT ?= $(GO)fmt +FIRST_GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH))) +GOOPTS ?= +GOHOSTOS ?= $(shell $(GO) env GOHOSTOS) +GOHOSTARCH ?= $(shell $(GO) env GOHOSTARCH) + +GO_VERSION ?= $(shell $(GO) version) +GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION)) +PRE_GO_111 ?= $(shell echo $(GO_VERSION_NUMBER) | grep -E 'go1\.(10|[0-9])\.') + +GOVENDOR := +GO111MODULE := +ifeq (, $(PRE_GO_111)) + ifneq (,$(wildcard go.mod)) + # Enforce Go modules support just in case the directory is inside GOPATH (and for Travis CI). + GO111MODULE := on + + ifneq (,$(wildcard vendor)) + # Always use the local vendor/ directory to satisfy the dependencies. + GOOPTS := $(GOOPTS) -mod=vendor + endif + endif +else + ifneq (,$(wildcard go.mod)) + ifneq (,$(wildcard vendor)) +$(warning This repository requires Go >= 1.11 because of Go modules) +$(warning Some recipes may not work as expected as the current Go runtime is '$(GO_VERSION_NUMBER)') + endif + else + # This repository isn't using Go modules (yet). + GOVENDOR := $(FIRST_GOPATH)/bin/govendor + endif +endif +PROMU := $(FIRST_GOPATH)/bin/promu +pkgs = ./... + +ifeq (arm, $(GOHOSTARCH)) + GOHOSTARM ?= $(shell GOARM= $(GO) env GOARM) + GO_BUILD_PLATFORM ?= $(GOHOSTOS)-$(GOHOSTARCH)v$(GOHOSTARM) +else + GO_BUILD_PLATFORM ?= $(GOHOSTOS)-$(GOHOSTARCH) +endif + +GOTEST := $(GO) test +GOTEST_DIR := +ifneq ($(CIRCLE_JOB),) +ifneq ($(shell which gotestsum),) + GOTEST_DIR := test-results + GOTEST := gotestsum --junitfile $(GOTEST_DIR)/unit-tests.xml -- +endif +endif + +PROMU_VERSION ?= 0.12.0 +PROMU_URL := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz + +GOLANGCI_LINT := +GOLANGCI_LINT_OPTS ?= +GOLANGCI_LINT_VERSION ?= v1.42.0 +# golangci-lint only supports linux, darwin and windows platforms on i386/amd64. +# windows isn't included here because of the path separator being different. +ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin)) + ifeq ($(GOHOSTARCH),$(filter $(GOHOSTARCH),amd64 i386)) + # If we're in CI and there is an Actions file, that means the linter + # is being run in Actions, so we don't need to run it here. + ifeq (,$(CIRCLE_JOB)) + GOLANGCI_LINT := $(FIRST_GOPATH)/bin/golangci-lint + else ifeq (,$(wildcard .github/workflows/golangci-lint.yml)) + GOLANGCI_LINT := $(FIRST_GOPATH)/bin/golangci-lint + endif + endif +endif + +PREFIX ?= $(shell pwd) +BIN_DIR ?= $(shell pwd) +DOCKER_IMAGE_TAG ?= $(subst /,-,$(shell git rev-parse --abbrev-ref HEAD)) +DOCKERFILE_PATH ?= ./Dockerfile +DOCKERBUILD_CONTEXT ?= ./ +DOCKER_REPO ?= prom + +DOCKER_ARCHS ?= amd64 + +BUILD_DOCKER_ARCHS = $(addprefix common-docker-,$(DOCKER_ARCHS)) +PUBLISH_DOCKER_ARCHS = $(addprefix common-docker-publish-,$(DOCKER_ARCHS)) +TAG_DOCKER_ARCHS = $(addprefix common-docker-tag-latest-,$(DOCKER_ARCHS)) + +ifeq ($(GOHOSTARCH),amd64) + ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux freebsd darwin windows)) + # Only supported on amd64 + test-flags := -race + endif +endif + +# This rule is used to forward a target like "build" to "common-build". This +# allows a new "build" target to be defined in a Makefile which includes this +# one and override "common-build" without override warnings. +%: common-% ; + +.PHONY: common-all +common-all: precheck style check_license lint yamllint unused build test + +.PHONY: common-style +common-style: + @echo ">> checking code style" + @fmtRes=$$($(GOFMT) -d $$(find . -path ./vendor -prune -o -name '*.go' -print)); \ + if [ -n "$${fmtRes}" ]; then \ + echo "gofmt checking failed!"; echo "$${fmtRes}"; echo; \ + echo "Please ensure you are using $$($(GO) version) for formatting code."; \ + exit 1; \ + fi + +.PHONY: common-check_license +common-check_license: + @echo ">> checking license header" + @licRes=$$(for file in $$(find . -type f -iname '*.go' ! -path './vendor/*') ; do \ + awk 'NR<=3' $$file | grep -Eq "(Copyright|generated|GENERATED)" || echo $$file; \ + done); \ + if [ -n "$${licRes}" ]; then \ + echo "license header checking failed:"; echo "$${licRes}"; \ + exit 1; \ + fi + +.PHONY: common-deps +common-deps: + @echo ">> getting dependencies" +ifdef GO111MODULE + GO111MODULE=$(GO111MODULE) $(GO) mod download +else + $(GO) get $(GOOPTS) -t ./... +endif + +.PHONY: update-go-deps +update-go-deps: + @echo ">> updating Go dependencies" + @for m in $$($(GO) list -mod=readonly -m -f '{{ if and (not .Indirect) (not .Main)}}{{.Path}}{{end}}' all); do \ + $(GO) get $$m; \ + done + GO111MODULE=$(GO111MODULE) $(GO) mod tidy +ifneq (,$(wildcard vendor)) + GO111MODULE=$(GO111MODULE) $(GO) mod vendor +endif + +.PHONY: common-test-short +common-test-short: $(GOTEST_DIR) + @echo ">> running short tests" + GO111MODULE=$(GO111MODULE) $(GOTEST) -short $(GOOPTS) $(pkgs) + +.PHONY: common-test +common-test: $(GOTEST_DIR) + @echo ">> running all tests" + GO111MODULE=$(GO111MODULE) $(GOTEST) $(test-flags) $(GOOPTS) $(pkgs) + +$(GOTEST_DIR): + @mkdir -p $@ + +.PHONY: common-format +common-format: + @echo ">> formatting code" + GO111MODULE=$(GO111MODULE) $(GO) fmt $(pkgs) + +.PHONY: common-vet +common-vet: + @echo ">> vetting code" + GO111MODULE=$(GO111MODULE) $(GO) vet $(GOOPTS) $(pkgs) + +.PHONY: common-lint +common-lint: $(GOLANGCI_LINT) +ifdef GOLANGCI_LINT + @echo ">> running golangci-lint" +ifdef GO111MODULE +# 'go list' needs to be executed before staticcheck to prepopulate the modules cache. +# Otherwise staticcheck might fail randomly for some reason not yet explained. + GO111MODULE=$(GO111MODULE) $(GO) list -e -compiled -test=true -export=false -deps=true -find=false -tags= -- ./... > /dev/null + GO111MODULE=$(GO111MODULE) $(GOLANGCI_LINT) run $(GOLANGCI_LINT_OPTS) $(pkgs) +else + $(GOLANGCI_LINT) run $(pkgs) +endif +endif + +.PHONY: common-yamllint +common-yamllint: + @echo ">> running yamllint on all YAML files in the repository" +ifeq (, $(shell which yamllint)) + @echo "yamllint not installed so skipping" +else + yamllint . +endif + +# For backward-compatibility. +.PHONY: common-staticcheck +common-staticcheck: lint + +.PHONY: common-unused +common-unused: $(GOVENDOR) +ifdef GOVENDOR + @echo ">> running check for unused packages" + @$(GOVENDOR) list +unused | grep . && exit 1 || echo 'No unused packages' +else +ifdef GO111MODULE + @echo ">> running check for unused/missing packages in go.mod" + GO111MODULE=$(GO111MODULE) $(GO) mod tidy +ifeq (,$(wildcard vendor)) + @git diff --exit-code -- go.sum go.mod +else + @echo ">> running check for unused packages in vendor/" + GO111MODULE=$(GO111MODULE) $(GO) mod vendor + @git diff --exit-code -- go.sum go.mod vendor/ +endif +endif +endif + +.PHONY: common-build +common-build: promu + @echo ">> building binaries" + GO111MODULE=$(GO111MODULE) $(PROMU) build --prefix $(PREFIX) $(PROMU_BINARIES) + +.PHONY: common-tarball +common-tarball: promu + @echo ">> building release tarball" + $(PROMU) tarball --prefix $(PREFIX) $(BIN_DIR) + +.PHONY: common-docker $(BUILD_DOCKER_ARCHS) +common-docker: $(BUILD_DOCKER_ARCHS) +$(BUILD_DOCKER_ARCHS): common-docker-%: + docker build -t "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" \ + -f $(DOCKERFILE_PATH) \ + --build-arg ARCH="$*" \ + --build-arg OS="linux" \ + $(DOCKERBUILD_CONTEXT) + +.PHONY: common-docker-publish $(PUBLISH_DOCKER_ARCHS) +common-docker-publish: $(PUBLISH_DOCKER_ARCHS) +$(PUBLISH_DOCKER_ARCHS): common-docker-publish-%: + docker push "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" + +DOCKER_MAJOR_VERSION_TAG = $(firstword $(subst ., ,$(shell cat VERSION))) +.PHONY: common-docker-tag-latest $(TAG_DOCKER_ARCHS) +common-docker-tag-latest: $(TAG_DOCKER_ARCHS) +$(TAG_DOCKER_ARCHS): common-docker-tag-latest-%: + docker tag "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:latest" + docker tag "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:v$(DOCKER_MAJOR_VERSION_TAG)" + +.PHONY: common-docker-manifest +common-docker-manifest: + DOCKER_CLI_EXPERIMENTAL=enabled docker manifest create -a "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" $(foreach ARCH,$(DOCKER_ARCHS),$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$(ARCH):$(DOCKER_IMAGE_TAG)) + DOCKER_CLI_EXPERIMENTAL=enabled docker manifest push "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" + +.PHONY: promu +promu: $(PROMU) + +$(PROMU): + $(eval PROMU_TMP := $(shell mktemp -d)) + curl -s -L $(PROMU_URL) | tar -xvzf - -C $(PROMU_TMP) + mkdir -p $(FIRST_GOPATH)/bin + cp $(PROMU_TMP)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM)/promu $(FIRST_GOPATH)/bin/promu + rm -r $(PROMU_TMP) + +.PHONY: proto +proto: + @echo ">> generating code from proto files" + @./scripts/genproto.sh + +ifdef GOLANGCI_LINT +$(GOLANGCI_LINT): + mkdir -p $(FIRST_GOPATH)/bin + curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/$(GOLANGCI_LINT_VERSION)/install.sh \ + | sed -e '/install -d/d' \ + | sh -s -- -b $(FIRST_GOPATH)/bin $(GOLANGCI_LINT_VERSION) +endif + +ifdef GOVENDOR +.PHONY: $(GOVENDOR) +$(GOVENDOR): + GOOS= GOARCH= $(GO) get -u github.com/kardianos/govendor +endif + +.PHONY: precheck +precheck:: + +define PRECHECK_COMMAND_template = +precheck:: $(1)_precheck + +PRECHECK_COMMAND_$(1) ?= $(1) $$(strip $$(PRECHECK_OPTIONS_$(1))) +.PHONY: $(1)_precheck +$(1)_precheck: + @if ! $$(PRECHECK_COMMAND_$(1)) 1>/dev/null 2>&1; then \ + echo "Execution of '$$(PRECHECK_COMMAND_$(1))' command failed. Is $(1) installed?"; \ + exit 1; \ + fi +endef diff --git a/README.md b/README.md new file mode 100644 index 0000000..7266273 --- /dev/null +++ b/README.md @@ -0,0 +1,162 @@ +# ecs_prometheus_exporter + +🚧 🚧 🚧 This repo is still work in progress and is subject to change. + +This repo contains a Prometheus exporter for +Amazon Elastic Container Service (ECS) that publishes +ECS task infra metrics in Prometheus format. + +You need to run it as a sidecar on your ECS tasks. + +By default, it publishes Prometheus metrics on ":9779/metrics". The exporter in this repo can be a useful complementary sidecar for the scenario described in [this blog post](https://aws.amazon.com/blogs/opensource/metrics-collection-from-amazon-ecs-using-amazon-managed-service-for-prometheus/). Adding this sidecar to the ECS task definition would export task-level metrics in addition to the custom metrics described in the blog. + +The sidecar process is also supported on [AWS App Runner](https://aws.amazon.com/apprunner/) +and can be used to publish infra metrics in Prometheus format +from App Runner services. + +## Labels + +* **container**: Container associated with a metric. +* **cpu**: Available to CPU metrics, helps to breakdown metrics by CPU. +* **device**: Network interface device associated with the metric. Only + available for several network metrics. + +## Example output + +``` +# HELP ecs_cpu_seconds_total Total CPU usage in seconds. +# TYPE ecs_cpu_seconds_total counter +ecs_cpu_seconds_total{container="ecs-metadata-proxy",cpu="0"} 1.746774278e+08 +ecs_cpu_seconds_total{container="ecs-metadata-proxy",cpu="1"} 1.7417992266e+08 +# HELP ecs_memory_bytes Memory usage in bytes. +# TYPE ecs_memory_bytes gauge +ecs_memory_bytes{container="ecs-metadata-proxy"} 4.440064e+06 +# HELP ecs_memory_limit_bytes Memory limit in bytes. +# TYPE ecs_memory_limit_bytes gauge +ecs_memory_limit_bytes{container="ecs-metadata-proxy"} 9.223372036854772e+18 +# HELP ecs_memory_max_bytes Maximum memory usage in bytes. +# TYPE ecs_memory_max_bytes gauge +ecs_memory_max_bytes{container="ecs-metadata-proxy"} 9.023488e+06 +# HELP ecs_network_receive_bytes_total Network recieved in bytes. +# TYPE ecs_network_receive_bytes_total counter +ecs_network_receive_bytes_total{container="ecs-metadata-proxy",device="eth1"} 4.2851757e+07 +# HELP ecs_network_receive_dropped_total Network packets dropped in recieving. +# TYPE ecs_network_receive_dropped_total counter +ecs_network_receive_dropped_total{container="ecs-metadata-proxy",device="eth1"} 0 +# HELP ecs_network_receive_errors_total Network errors in recieving. +# TYPE ecs_network_receive_errors_total counter +ecs_network_receive_errors_total{container="ecs-metadata-proxy",device="eth1"} 0 +# HELP ecs_network_receive_packets_total Network packets recieved. +# TYPE ecs_network_receive_packets_total counter +ecs_network_receive_packets_total{container="ecs-metadata-proxy",device="eth1"} 516239 +# HELP ecs_network_transmit_bytes_total Network transmitted in bytes. +# TYPE ecs_network_transmit_bytes_total counter +ecs_network_transmit_bytes_total{container="ecs-metadata-proxy",device="eth1"} 1.28412758e+08 +# HELP ecs_network_transmit_dropped_total Network packets dropped in transmit. +# TYPE ecs_network_transmit_dropped_total counter +ecs_network_transmit_dropped_total{container="ecs-metadata-proxy",device="eth1"} 0 +# HELP ecs_network_transmit_errors_total Network errors in transmit. +# TYPE ecs_network_transmit_errors_total counter +ecs_network_transmit_errors_total{container="ecs-metadata-proxy",device="eth1"} 0 +# HELP ecs_network_transmit_packets_total Network packets transmitted. +# TYPE ecs_network_transmit_packets_total counter +ecs_network_transmit_packets_total{container="ecs-metadata-proxy",device="eth1"} 429472 +# HELP go_gc_duration_seconds A summary of the pause duration of garbage collection cycles. +# TYPE go_gc_duration_seconds summary +go_gc_duration_seconds{quantile="0"} 0 +go_gc_duration_seconds{quantile="0.25"} 0 +go_gc_duration_seconds{quantile="0.5"} 0 +go_gc_duration_seconds{quantile="0.75"} 0 +go_gc_duration_seconds{quantile="1"} 0 +go_gc_duration_seconds_sum 0 +go_gc_duration_seconds_count 0 +# HELP go_goroutines Number of goroutines that currently exist. +# TYPE go_goroutines gauge +go_goroutines 8 +# HELP go_info Information about the Go environment. +# TYPE go_info gauge +go_info{version="go1.16.3"} 1 +# HELP go_memstats_alloc_bytes Number of bytes allocated and still in use. +# TYPE go_memstats_alloc_bytes gauge +go_memstats_alloc_bytes 595760 +# HELP go_memstats_alloc_bytes_total Total number of bytes allocated, even if freed. +# TYPE go_memstats_alloc_bytes_total counter +go_memstats_alloc_bytes_total 595760 +# HELP go_memstats_buck_hash_sys_bytes Number of bytes used by the profiling bucket hash table. +# TYPE go_memstats_buck_hash_sys_bytes gauge +go_memstats_buck_hash_sys_bytes 4092 +# HELP go_memstats_frees_total Total number of frees. +# TYPE go_memstats_frees_total counter +go_memstats_frees_total 123 +# HELP go_memstats_gc_cpu_fraction The fraction of this program's available CPU time used by the GC since the program started. +# TYPE go_memstats_gc_cpu_fraction gauge +go_memstats_gc_cpu_fraction 0 +# HELP go_memstats_gc_sys_bytes Number of bytes used for garbage collection system metadata. +# TYPE go_memstats_gc_sys_bytes gauge +go_memstats_gc_sys_bytes 3.97448e+06 +# HELP go_memstats_heap_alloc_bytes Number of heap bytes allocated and still in use. +# TYPE go_memstats_heap_alloc_bytes gauge +go_memstats_heap_alloc_bytes 595760 +# HELP go_memstats_heap_idle_bytes Number of heap bytes waiting to be used. +# TYPE go_memstats_heap_idle_bytes gauge +go_memstats_heap_idle_bytes 6.508544e+07 +# HELP go_memstats_heap_inuse_bytes Number of heap bytes that are in use. +# TYPE go_memstats_heap_inuse_bytes gauge +go_memstats_heap_inuse_bytes 1.59744e+06 +# HELP go_memstats_heap_objects Number of allocated objects. +# TYPE go_memstats_heap_objects gauge +go_memstats_heap_objects 2439 +# HELP go_memstats_heap_released_bytes Number of heap bytes released to OS. +# TYPE go_memstats_heap_released_bytes gauge +go_memstats_heap_released_bytes 6.508544e+07 +# HELP go_memstats_heap_sys_bytes Number of heap bytes obtained from system. +# TYPE go_memstats_heap_sys_bytes gauge +go_memstats_heap_sys_bytes 6.668288e+07 +# HELP go_memstats_last_gc_time_seconds Number of seconds since 1970 of last garbage collection. +# TYPE go_memstats_last_gc_time_seconds gauge +go_memstats_last_gc_time_seconds 0 +# HELP go_memstats_lookups_total Total number of pointer lookups. +# TYPE go_memstats_lookups_total counter +go_memstats_lookups_total 0 +# HELP go_memstats_mallocs_total Total number of mallocs. +# TYPE go_memstats_mallocs_total counter +go_memstats_mallocs_total 2562 +# HELP go_memstats_mcache_inuse_bytes Number of bytes in use by mcache structures. +# TYPE go_memstats_mcache_inuse_bytes gauge +go_memstats_mcache_inuse_bytes 9600 +# HELP go_memstats_mcache_sys_bytes Number of bytes used for mcache structures obtained from system. +# TYPE go_memstats_mcache_sys_bytes gauge +go_memstats_mcache_sys_bytes 16384 +# HELP go_memstats_mspan_inuse_bytes Number of bytes in use by mspan structures. +# TYPE go_memstats_mspan_inuse_bytes gauge +go_memstats_mspan_inuse_bytes 37400 +# HELP go_memstats_mspan_sys_bytes Number of bytes used for mspan structures obtained from system. +# TYPE go_memstats_mspan_sys_bytes gauge +go_memstats_mspan_sys_bytes 49152 +# HELP go_memstats_next_gc_bytes Number of heap bytes when next garbage collection will take place. +# TYPE go_memstats_next_gc_bytes gauge +go_memstats_next_gc_bytes 4.473924e+06 +# HELP go_memstats_other_sys_bytes Number of bytes used for other system allocations. +# TYPE go_memstats_other_sys_bytes gauge +go_memstats_other_sys_bytes 497348 +# HELP go_memstats_stack_inuse_bytes Number of bytes in use by the stack allocator. +# TYPE go_memstats_stack_inuse_bytes gauge +go_memstats_stack_inuse_bytes 425984 +# HELP go_memstats_stack_sys_bytes Number of bytes obtained from system for stack allocator. +# TYPE go_memstats_stack_sys_bytes gauge +go_memstats_stack_sys_bytes 425984 +# HELP go_memstats_sys_bytes Number of bytes obtained from system. +# TYPE go_memstats_sys_bytes gauge +go_memstats_sys_bytes 7.165032e+07 +# HELP go_threads Number of OS threads created. +# TYPE go_threads gauge +go_threads 7 +# HELP promhttp_metric_handler_requests_in_flight Current number of scrapes being served. +# TYPE promhttp_metric_handler_requests_in_flight gauge +promhttp_metric_handler_requests_in_flight 1 +# HELP promhttp_metric_handler_requests_total Total number of scrapes by HTTP status code. +# TYPE promhttp_metric_handler_requests_total counter +promhttp_metric_handler_requests_total{code="200"} 0 +promhttp_metric_handler_requests_total{code="500"} 0 +promhttp_metric_handler_requests_total{code="503"} 0 +``` diff --git a/VERSION b/VERSION new file mode 100644 index 0000000..6e8bf73 --- /dev/null +++ b/VERSION @@ -0,0 +1 @@ +0.1.0 diff --git a/ecscollector/collector.go b/ecscollector/collector.go new file mode 100644 index 0000000..45d16ba --- /dev/null +++ b/ecscollector/collector.go @@ -0,0 +1,216 @@ +// Copyright 2021 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package ecscollector implements a Prometheus collector for Amazon ECS +// metrics available at the ECS metadata server. +package ecscollector + +import ( + "context" + "fmt" + "log" + + "github.com/prometheus-community/ecs_exporter/ecsmetadata" + "github.com/prometheus/client_golang/prometheus" + "github.com/tklauser/go-sysconf" +) + +var ( + cpuTotalDesc = prometheus.NewDesc( + "ecs_cpu_seconds_total", + "Total CPU usage in seconds.", + cpuLabels, nil) + + memUsageDesc = prometheus.NewDesc( + "ecs_memory_bytes", + "Memory usage in bytes.", + labels, nil) + + memMaxUsageDesc = prometheus.NewDesc( + "ecs_memory_max_bytes", + "Maximum memory usage in bytes.", + labels, nil) + + memLimitDesc = prometheus.NewDesc( + "ecs_memory_limit_bytes", + "Memory limit in bytes.", + labels, nil) + + networkRxBytesDesc = prometheus.NewDesc( + "ecs_network_receive_bytes_total", + "Network recieved in bytes.", + networkLabels, nil) + + networkRxPacketsDesc = prometheus.NewDesc( + "ecs_network_receive_packets_total", + "Network packets recieved.", + networkLabels, nil) + + networkRxDroppedDesc = prometheus.NewDesc( + "ecs_network_receive_dropped_total", + "Network packets dropped in recieving.", + networkLabels, nil) + + networkRxErrorsDesc = prometheus.NewDesc( + "ecs_network_receive_errors_total", + "Network errors in recieving.", + networkLabels, nil) + + networkTxBytesDesc = prometheus.NewDesc( + "ecs_network_transmit_bytes_total", + "Network transmitted in bytes.", + networkLabels, nil) + + networkTxPacketsDesc = prometheus.NewDesc( + "ecs_network_transmit_packets_total", + "Network packets transmitted.", + networkLabels, nil) + + networkTxDroppedDesc = prometheus.NewDesc( + "ecs_network_transmit_dropped_total", + "Network packets dropped in transmit.", + networkLabels, nil) + + networkTxErrorsDesc = prometheus.NewDesc( + "ecs_network_transmit_errors_total", + "Network errors in transmit.", + networkLabels, nil) +) + +var labels = []string{ + "container", +} + +var cpuLabels = append( + labels, + "cpu", +) + +var networkLabels = append( + labels, + "device", +) + +// NewCollector returns a new Collector that queries ECS metadata server +// for ECS task and container metrics. +func NewCollector(client *ecsmetadata.Client) prometheus.Collector { + return &collector{client: client} +} + +type collector struct { + client *ecsmetadata.Client +} + +func (c *collector) Describe(ch chan<- *prometheus.Desc) { + ch <- cpuTotalDesc + ch <- memUsageDesc + ch <- memMaxUsageDesc + ch <- memLimitDesc + ch <- networkRxBytesDesc + ch <- networkRxPacketsDesc + ch <- networkRxDroppedDesc + ch <- networkRxErrorsDesc + ch <- networkTxBytesDesc + ch <- networkTxPacketsDesc + ch <- networkTxDroppedDesc + ch <- networkTxErrorsDesc +} + +func (c *collector) Collect(ch chan<- prometheus.Metric) { + ctx := context.Background() + metadata, err := c.client.RetrieveTaskMetadata(ctx) + if err != nil { + log.Printf("Failed to retrieve metadata: %v", err) + return + } + stats, err := c.client.RetrieveTaskStats(ctx) + if err != nil { + log.Printf("Failed to retrieve container stats: %v", err) + return + } + for _, container := range metadata.Containers { + s := stats[container.DockerID] + if s == nil { + log.Printf("Couldn't find container with ID %q in stats", container.DockerID) + continue + } + + labelVals := []string{ + container.Name, + } + + for i, cpuUsage := range s.CPUStats.CPUUsage.PerCPUUsage { + cpu := fmt.Sprintf("%d", i) + ch <- prometheus.MustNewConstMetric( + cpuTotalDesc, + prometheus.CounterValue, + cpuJiffiesToSeconds(cpuUsage), + append(labelVals, cpu)..., + ) + } + + for desc, value := range map[*prometheus.Desc]float64{ + memUsageDesc: s.MemoryStats.Usage, + memMaxUsageDesc: s.MemoryStats.MaxUsage, + memLimitDesc: s.MemoryStats.Limit, + } { + ch <- prometheus.MustNewConstMetric( + desc, + prometheus.GaugeValue, + value, + labelVals..., + ) + } + + // Network metrics per inteface. + for iface, netStats := range s.Networks { + networkLabelVals := append(labelVals, iface) + + for desc, value := range map[*prometheus.Desc]float64{ + networkRxBytesDesc: netStats.RxBytes, + networkRxPacketsDesc: netStats.RxPackets, + networkRxDroppedDesc: netStats.RxDropped, + networkRxErrorsDesc: netStats.RxErrors, + networkTxBytesDesc: netStats.TxBytes, + networkTxPacketsDesc: netStats.TxPackets, + networkTxDroppedDesc: netStats.TxDropped, + networkTxErrorsDesc: netStats.TxErrors, + } { + ch <- prometheus.MustNewConstMetric( + desc, + prometheus.CounterValue, + value, + networkLabelVals..., + ) + } + } + } +} + +// cpuJiffiesToSeconds converts CPU metrics +// in jiffies to seconds. +func cpuJiffiesToSeconds(j float64) float64 { + return j / float64(clockTick) +} + +var clockTick int64 = 100 // Clock ticks are platform dependent, read from system config. + +func init() { + tick, err := sysconf.Sysconf(sysconf.SC_CLK_TCK) + if err != nil { + log.Printf("Can't get _SC_CLK_TCK; using 100 instead: %v\n", err) + return + } + log.Printf("sysconf(_SC_CLK_TCK) = %d", tick) + clockTick = tick +} diff --git a/ecsmetadata/client.go b/ecsmetadata/client.go new file mode 100644 index 0000000..2844a8c --- /dev/null +++ b/ecsmetadata/client.go @@ -0,0 +1,198 @@ +// Copyright 2021 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package ecsmetadata queries ECS Metadata Server for ECS task metrics. +// This package is currently experimental and is subject to change. +package ecsmetadata + +import ( + "context" + "encoding/json" + "io/ioutil" + "log" + "net/http" + "os" +) + +var endpoint string + +func init() { + const endpointEnv = "ECS_CONTAINER_METADATA_URI_V4" + endpoint = os.Getenv(endpointEnv) + if endpoint == "" { + log.Fatalf("%q environmental variable is not set, are you running this on ECS?", endpointEnv) + } +} + +type Client struct { + // httpClient is the client to use when making HTTP requests + // when set. Otherwise, an internal default client will be used. + httpClient *http.Client +} + +func NewClient(httpClient *http.Client) (*Client, error) { + if httpClient == nil { + httpClient = &http.Client{} + } + return &Client{httpClient: httpClient}, nil +} + +func (c *Client) RetrieveTaskStats(ctx context.Context) (map[string]*ContainerStats, error) { + out := make(map[string]*ContainerStats) + err := c.request(ctx, endpoint+"/task/stats", &out) + return out, err +} + +func (c *Client) RetrieveTaskMetadata(ctx context.Context) (*TaskMetadata, error) { + var out TaskMetadata + err := c.request(ctx, endpoint+"/task", &out) + return &out, err +} + +func (c *Client) request(ctx context.Context, uri string, out interface{}) error { + req, err := http.NewRequest("GET", uri, nil) + if err != nil { + return err + } + req = req.WithContext(ctx) + resp, err := c.httpClient.Do(req) + if err != nil { + return err + } + defer resp.Body.Close() + + body, err := ioutil.ReadAll(resp.Body) + if err != nil { + return err + } + return json.Unmarshal(body, out) +} + +type ContainerStats struct { + Name string `json:"name"` + ID string `json:"id"` + NumProcs float64 `json:"num_procs"` + + CPUStats struct { + CPUUsage struct { + TotalUsage float64 `json:"total_usage"` + PerCPUUsage []float64 `json:"percpu_usage"` + UsageInKernelMode float64 `json:"usage_in_kernelmode"` + UsageInUserMode float64 `json:"usage_in_usermode"` + } `json:"cpu_usage"` + SystemCPUUsage float64 `json:"system_cpu_usage"` + OnlineCPUs float64 `json:"online_cpus"` + ThrottlingData struct { + Periods float64 `json:"periods"` + ThrottledPeriods float64 `json:"throttled_periods"` + ThrottledTime float64 `json:"throttled_time"` + } `json:"throttling_data"` + } `json:"cpu_stats"` + + PreCPUStats struct { + CPUUsage struct { + TotalUsage float64 `json:"total_usage"` + PerCPUUsage []float64 `json:"percpu_usage"` + UsageInKernelMode float64 `json:"usage_in_kernelmode"` + UsageInUserMode float64 `json:"usage_in_usermode"` + } `json:"cpu_usage"` + SystemCPUUsage float64 `json:"system_cpu_usage"` + OnlineCPUs float64 `json:"online_cpus"` + ThrottlingData struct { + Periods float64 `json:"periods"` + ThrottledPeriods float64 `json:"throttled_periods"` + ThrottledTime float64 `json:"throttled_time"` + } `json:"throttling_data"` + } `json:"precpu_stats"` + + MemoryStats struct { + Usage float64 `json:"usage"` + MaxUsage float64 `json:"max_usage"` + Stats struct { + ActiveAnon float64 `json:"active_anon"` + ActiveFile float64 `json:"active_file"` + Cache float64 `json:"cache"` + Dirty float64 `json:"dirty"` + HierarchicalMemoryLimit float64 `json:"hierarchical_memory_limit"` + HierarchicalMemswLimit float64 `json:"hierarchical_memsw_limit"` + InactiveAnon float64 `json:"inactive_anon"` + InactiveFile float64 `json:"inactive_file"` + MappedFile float64 `json:"mapped_file"` + Pgfault float64 `json:"pgfault"` + Pgmajfault float64 `json:"pgmajfault"` + Pgpgin float64 `json:"pgpgin"` + Pgpgout float64 `json:"pgpgout"` + RSS float64 `json:"rss"` + RSSHuge float64 `json:"rss_huge"` + TotalActiveAnon float64 `json:"total_active_anon"` + TotalActiveFile float64 `json:"total_active_file"` + TotalCache float64 `json:"total_cache"` + TotalDirty float64 `json:"total_dirty"` + TotalInactiveAnon float64 `json:"total_inactive_anon"` + TotalInactiveFile float64 `json:"total_inactive_file"` + TotalMappedFile float64 `json:"total_mapped_file"` + TotalPgfault float64 `json:"total_pgfault"` + TotalPgmajfault float64 `json:"total_pgmajfault"` + TotalPgpgin float64 `json:"total_pgpgin"` + TotalPgpgout float64 `json:"total_pgpgout"` + TotalRSS float64 `json:"total_rss"` + TotalRSSHuge float64 `json:"total_rss_huge"` + TotalUnevictable float64 `json:"total_unevictable"` + TotalWriteback float64 `json:"total_writeback"` + Unevictable float64 `json:"unevictable"` + Writeback float64 `json:"writeback"` + } `json:"stats"` + Limit float64 `json:"limit"` + } `json:"memory_stats"` + + Networks map[string]struct { + RxBytes float64 `json:"rx_bytes"` + RxPackets float64 `json:"rx_packets"` + RxErrors float64 `json:"rx_errors"` + RxDropped float64 `json:"rx_dropped"` + TxBytes float64 `json:"tx_bytes"` + TxPackets float64 `json:"tx_packets"` + TxErrors float64 `json:"tx_errors"` + TxDropped float64 `json:"tx_dropped"` + } `json:"networks"` + + NetworkRateStats struct { + RxBytesPerSec float64 `json:"rx_bytes_per_sec"` + TxBytesPerSec float64 `json:"tx_bytes_per_sec"` + } `json:"network_rate_stats"` +} + +// TODO(jbd): Add storage stats. + +type TaskMetadata struct { + Cluster string `json:"Cluster"` + TaskARN string `json:"TaskARN"` + Family string `json:"Family"` + Revision string `json:"Revision"` + DesiredStatus string `json:"DesiredStatus"` + KnownStatus string `json:"KnownStatus"` + AvailabilityZone string `json:"AvailabilityZone"` + LaunchType string `json:"LaunchType"` + Containers []struct { + DockerID string `json:"DockerId"` + Name string `json:"Name"` + DockerName string `json:"DockerName"` + Image string `json:"Image"` + ImageID string `json:"ImageID"` + Labels map[string]string `json:"Labels"` + DesiredStatus string `json:"DesiredStatus"` + KnownStatus string `json:"KnownStatus"` + Type string `json:"Type"` + ContainerARN string `json:"ContainerARN"` + } `json:"Containers"` +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..3130bd2 --- /dev/null +++ b/go.mod @@ -0,0 +1,8 @@ +module github.com/prometheus-community/ecs_exporter + +go 1.16 + +require ( + github.com/prometheus/client_golang v1.11.0 + github.com/tklauser/go-sysconf v0.3.9 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..eda3319 --- /dev/null +++ b/go.sum @@ -0,0 +1,181 @@ +cloud.google.com/go v0.34.0 h1:eOI3/cP2VTU6uZLDYAoic+eyzzB9YyGmJ7eIjl8rOPg= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= 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h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo= +gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU= +gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= diff --git a/main.go b/main.go new file mode 100644 index 0000000..d5bf815 --- /dev/null +++ b/main.go @@ -0,0 +1,49 @@ +// Copyright 2021 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package main + +import ( + "flag" + "fmt" + "log" + "net/http" + + "github.com/prometheus-community/ecs_exporter/ecscollector" + "github.com/prometheus-community/ecs_exporter/ecsmetadata" + "github.com/prometheus/client_golang/prometheus" + "github.com/prometheus/client_golang/prometheus/promhttp" +) + +var addr string + +func main() { + flag.StringVar(&addr, "addr", ":9779", "The address to listen on for HTTP requests.") + flag.Parse() + + client, err := ecsmetadata.NewClient(nil) + if err != nil { + log.Fatalf("Error creating client: %v", err) + } + prometheus.MustRegister(ecscollector.NewCollector(client)) + + http.Handle("/", http.RedirectHandler("/metrics", http.StatusMovedPermanently)) + http.Handle("/metrics", promhttp.Handler()) + http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusOK) + fmt.Fprint(w, "ok") + }) + + log.Printf("Starting server at %q", addr) + log.Fatal(http.ListenAndServe(addr, nil)) +}