initial commit

.gitignore

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+bazel*

WORKSPACE

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+workspace(name = "io_bazel_rules_prometheus")
+
+load(":deps.bzl", "prometheus_repositories")
+
+prometheus_repositories()
+
+register_toolchains(
+    "//prometheus/toolchain:all",
+)

deps.bzl

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+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+PROMETHEUS_VERSION = "2.23.0"
+PROMETHEUS_DARWIN_ARCH = "darwin-amd64"
+PROMETHEUS_DARWIN = "{PROMETHEUS_VERSION}.{PROMETHEUS_DARWIN_ARCH}"
+PROMETHEUS_DARWIN_URL = "https://github.com/prometheus/prometheus/releases/download/v{PROMETHEUS_VERSION}/prometheus-{PROMETHEUS_VERSION}.{PROMETHEUS_DARWIN_ARCH}.tar.gz"
+
+def prometheus_repositories():
+    http_archive(
+        name = "prometheus_darwin",
+        sha256 = "d589a45495cea1aa74bff82335d2145f2d93b8b357c3398739b9139c74dc0cfe",
+        urls = [PROMETHEUS_DARWIN_URL],
+        strip_prefix = "prometheus-%s.%s" % (PROMETHEUS_VERSION, PROMETHEUS_DARWIN_ARCH),
+        build_file = "@//:prometheus.BUILD",
+    )

examples/BUILD

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+load("//prometheus:prometheus.bzl", "promtool_config_test", "promtool_unit_test")
+
+promtool_unit_test(
+    name = "test_rules_yml",
+    srcs = [
+        "tests.yml",
+    ],
+    rules = ["rules.yml"],
+)
+
+promtool_unit_test(
+    name = "test_rules_json",
+    srcs = [
+        "tests.json",
+    ],
+    rules = ["rules.json"],
+)
+
+promtool_unit_test(
+    name = "test_rules_multiple",
+    srcs = [
+        "tests.json",
+        "tests.yml",
+    ],
+    rules = [
+        "rules.json",
+        "rules.yml",
+    ],
+)
+
+promtool_config_test(
+    name = "test_config_yml",
+    srcs = ["prometheus.yml"],
+)
+
+promtool_config_test(
+    name = "test_config_json",
+    srcs = ["prometheus.json"],
+)
+
+promtool_config_test(
+    name = "test_config_multiple",
+    srcs = [
+        "prometheus.json",
+        "prometheus.yml",
+    ],
+)
+
+test_suite(
+    name = "all_tests",
+    tests = [
+        ":test_config_json",
+        ":test_config_multiple",
+        ":test_config_yml",
+        ":test_rules_json",
+        ":test_rules_multiple",
+        ":test_rules_yml",
+    ],
+)

examples/prometheus.json

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+{
+  "global": {
+    "scrape_interval": "15s",
+    "evaluation_interval": "15s"
+  },
+  "alerting": {
+    "alertmanagers": [
+      {
+        "static_configs": [
+          {
+            "targets": null
+          }
+        ]
+      }
+    ]
+  },
+  "rule_files": null,
+  "scrape_configs": [
+    {
+      "job_name": "prometheus",
+      "static_configs": [
+        {
+          "targets": ["localhost:9090"]
+        }
+      ]
+    }
+  ]
+}

examples/prometheus.yml

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+# my global config
+global:
+  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+          # - alertmanager:9093
+
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+  # - "first_rules.yml"
+  # - "second_rules.yml"
+
+# A scrape configuration containing exactly one endpoint to scrape:
+# Here it's Prometheus itself.
+scrape_configs:
+  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
+  - job_name: "prometheus"
+
+    # metrics_path defaults to '/metrics'
+    # scheme defaults to 'http'.
+
+    static_configs:
+      - targets: ["localhost:9090"]

examples/rules.json

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+{
+  "groups": [
+    {
+      "name": "example",
+      "rules": [
+        {
+          "alert": "InstanceDown",
+          "expr": "up == 0",
+          "for": "5m",
+          "labels": {
+            "severity": "page"
+          },
+          "annotations": {
+            "summary": "Instance {{ $labels.instance }} down",
+            "description": "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."
+          }
+        },
+        {
+          "alert": "AnotherInstanceDown",
+          "expr": "up == 0",
+          "for": "10m",
+          "labels": {
+            "severity": "page"
+          },
+          "annotations": {
+            "summary": "Instance {{ $labels.instance }} down",
+            "description": "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."
+          }
+        }
+      ]
+    }
+  ]
+}

examples/rules.yml

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+# This is the rules file.
+
+groups:
+  - name: example
+    rules:
+      - alert: InstanceDown
+        expr: up == 0
+        for: 5m
+        labels:
+          severity: page
+        annotations:
+          summary: "Instance {{ $labels.instance }} down"
+          description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."
+
+      - alert: AnotherInstanceDown
+        expr: up == 0
+        for: 10m
+        labels:
+          severity: page
+        annotations:
+          summary: "Instance {{ $labels.instance }} down"
+          description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."

examples/tests.json

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+{
+  "rule_files": ["rules.json"],
+  "evaluation_interval": "1m",
+  "tests": [
+    {
+      "interval": "1m",
+      "input_series": [
+        {
+          "series": "up{job=\"prometheus\", instance=\"localhost:9090\"}",
+          "values": "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"
+        },
+        {
+          "series": "up{job=\"node_exporter\", instance=\"localhost:9100\"}",
+          "values": "1+0x6 0 0 0 0 0 0 0 0"
+        },
+        {
+          "series": "go_goroutines{job=\"prometheus\", instance=\"localhost:9090\"}",
+          "values": "10+10x2 30+20x5"
+        },
+        {
+          "series": "go_goroutines{job=\"node_exporter\", instance=\"localhost:9100\"}",
+          "values": "10+10x7 10+30x4"
+        }
+      ],
+      "alert_rule_test": [
+        {
+          "eval_time": "10m",
+          "alertname": "InstanceDown",
+          "exp_alerts": [
+            {
+              "exp_labels": {
+                "severity": "page",
+                "instance": "localhost:9090",
+                "job": "prometheus"
+              },
+              "exp_annotations": {
+                "summary": "Instance localhost:9090 down",
+                "description": "localhost:9090 of job prometheus has been down for more than 5 minutes."
+              }
+            }
+          ]
+        }
+      ],
+      "promql_expr_test": [
+        {
+          "expr": "go_goroutines > 5",
+          "eval_time": "4m",
+          "exp_samples": [
+            {
+              "labels": "go_goroutines{job=\"prometheus\",instance=\"localhost:9090\"}",
+              "value": 50
+            },
+            {
+              "labels": "go_goroutines{job=\"node_exporter\",instance=\"localhost:9100\"}",
+              "value": 50
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}

examples/tests.yml

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+# This is the main input for unit testing.
+# Only this file is passed as command line argument.
+
+rule_files:
+  - rules.yml
+
+evaluation_interval: 1m
+
+tests:
+  # Test 1.
+  - interval: 1m
+    # Series data.
+    input_series:
+      - series: 'up{job="prometheus", instance="localhost:9090"}'
+        values: "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"
+      - series: 'up{job="node_exporter", instance="localhost:9100"}'
+        values: "1+0x6 0 0 0 0 0 0 0 0" # 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
+      - series: 'go_goroutines{job="prometheus", instance="localhost:9090"}'
+        values: "10+10x2 30+20x5" # 10 20 30 30 50 70 90 110 130
+      - series: 'go_goroutines{job="node_exporter", instance="localhost:9100"}'
+        values: "10+10x7 10+30x4" # 10 20 30 40 50 60 70 80 10 40 70 100 130
+
+    # Unit test for alerting rules.
+    alert_rule_test:
+      # Unit test 1.
+      - eval_time: 10m
+        alertname: InstanceDown
+        exp_alerts:
+          # Alert 1.
+          - exp_labels:
+              severity: page
+              instance: localhost:9090
+              job: prometheus
+            exp_annotations:
+              summary: "Instance localhost:9090 down"
+              description: "localhost:9090 of job prometheus has been down for more than 5 minutes."
+    # Unit tests for promql expressions.
+    promql_expr_test:
+      # Unit test 1.
+      - expr: go_goroutines > 5
+        eval_time: 4m
+        exp_samples:
+          # Sample 1.
+          - labels: 'go_goroutines{job="prometheus",instance="localhost:9090"}'
+            value: 50
+          # Sample 2.
+          - labels: 'go_goroutines{job="node_exporter",instance="localhost:9100"}'
+            value: 50

prometheus.BUILD

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+exports_files([
+    "prometheus",
+    "promtool",
+])

prometheus/BUILD

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+package(default_visibility = ["//visibility:public"])

prometheus/internal/BUILD

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+package(
+    default_visibility = ["//prometheus:__subpackages__"],
+)
+
+exports_files(
+    glob([
+        "*.bat",
+        "*.sh",
+        "*.sh.tpl",
+    ]),
+    visibility = ["//visibility:public"],
+)