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grafana_dashboard_factory.py
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grafana_dashboard_factory.py
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import copy
from dataclasses import asdict
import json
import os
from typing import List, Tuple
import ray
from ray.dashboard.modules.metrics.dashboards.common import DashboardConfig, Panel
from ray.dashboard.modules.metrics.dashboards.default_dashboard_panels import (
default_dashboard_config,
)
from ray.dashboard.modules.metrics.dashboards.serve_dashboard_panels import (
serve_dashboard_config,
)
from ray.dashboard.modules.metrics.dashboards.serve_deployment_dashboard_panels import (
serve_deployment_dashboard_config,
)
METRICS_INPUT_ROOT = os.path.join(os.path.dirname(__file__), "export")
GRAFANA_CONFIG_INPUT_PATH = os.path.join(METRICS_INPUT_ROOT, "grafana")
GRAFANA_DASHBOARD_UID_OVERRIDE_ENV_VAR_TEMPLATE = "RAY_GRAFANA_{name}_DASHBOARD_UID"
GRAFANA_DASHBOARD_GLOBAL_FILTERS_OVERRIDE_ENV_VAR_TEMPLATE = (
"RAY_GRAFANA_{name}_DASHBOARD_GLOBAL_FILTERS"
)
TARGET_TEMPLATE = {
"exemplar": True,
"expr": "0",
"interval": "",
"legendFormat": "",
"queryType": "randomWalk",
"refId": "A",
}
PANEL_TEMPLATE = {
"aliasColors": {},
"bars": False,
"dashLength": 10,
"dashes": False,
"datasource": "Prometheus",
"description": "<Description>",
"fieldConfig": {"defaults": {}, "overrides": []},
"fill": 10,
"fillGradient": 0,
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 0},
"hiddenSeries": False,
"id": 26,
"legend": {
"alignAsTable": True,
"avg": False,
"current": True,
"hideEmpty": False,
"hideZero": True,
"max": False,
"min": False,
"rightSide": False,
"show": True,
"sort": "current",
"sortDesc": True,
"total": False,
"values": True,
},
"lines": True,
"linewidth": 1,
"nullPointMode": "null",
"options": {"alertThreshold": True},
"percentage": False,
"pluginVersion": "7.5.17",
"pointradius": 2,
"points": False,
"renderer": "flot",
"seriesOverrides": [
{
"$$hashKey": "object:2987",
"alias": "MAX",
"dashes": True,
"color": "#1F60C4",
"fill": 0,
"stack": False,
},
{
"$$hashKey": "object:78",
"alias": "/FINISHED|FAILED|DEAD|REMOVED|Failed Nodes:/",
"hiddenSeries": True,
},
{
"$$hashKey": "object:2987",
"alias": "MAX + PENDING",
"dashes": True,
"color": "#777777",
"fill": 0,
"stack": False,
},
],
"spaceLength": 10,
"stack": True,
"steppedLine": False,
"targets": [],
"thresholds": [],
"timeFrom": None,
"timeRegions": [],
"timeShift": None,
"title": "<Title>",
"tooltip": {"shared": True, "sort": 0, "value_type": "individual"},
"type": "graph",
"xaxis": {
"buckets": None,
"mode": "time",
"name": None,
"show": True,
"values": [],
},
"yaxes": [
{
"$$hashKey": "object:628",
"format": "units",
"label": "",
"logBase": 1,
"max": None,
"min": "0",
"show": True,
},
{
"$$hashKey": "object:629",
"format": "short",
"label": None,
"logBase": 1,
"max": None,
"min": None,
"show": True,
},
],
"yaxis": {"align": False, "alignLevel": None},
}
def _read_configs_for_dashboard(
dashboard_config: DashboardConfig,
) -> Tuple[str, List[str]]:
"""
Reads environment variable configs for overriding uid or global_filters for a given
dashboard.
Returns:
Tuple with format uid, global_filters
"""
uid = (
os.environ.get(
GRAFANA_DASHBOARD_UID_OVERRIDE_ENV_VAR_TEMPLATE.format(
name=dashboard_config.name
)
)
or dashboard_config.default_uid
)
global_filters_str = (
os.environ.get(
GRAFANA_DASHBOARD_GLOBAL_FILTERS_OVERRIDE_ENV_VAR_TEMPLATE.format(
name=dashboard_config.name
)
)
or ""
)
global_filters = global_filters_str.split(",")
return uid, global_filters
def generate_default_grafana_dashboard() -> Tuple[str, str]:
"""
Generates the dashboard output for the default dashboard and returns
both the content and the uid.
Returns:
Tuple with format content, uid
"""
return _generate_grafana_dashboard(default_dashboard_config)
def generate_serve_grafana_dashboard() -> Tuple[str, str]:
"""
Generates the dashboard output for the serve dashboard and returns
both the content and the uid.
Returns:
Tuple with format content, uid
"""
return _generate_grafana_dashboard(serve_dashboard_config)
def generate_serve_deployment_grafana_dashboard() -> Tuple[str, str]:
"""
Generates the dashboard output for the serve dashboard and returns
both the content and the uid.
Returns:
Tuple with format content, uid
"""
return _generate_grafana_dashboard(serve_deployment_dashboard_config)
def _generate_grafana_dashboard(dashboard_config: DashboardConfig) -> str:
"""
Returns:
Tuple with format dashboard_content, uid
"""
uid, global_filters = _read_configs_for_dashboard(dashboard_config)
panels = _generate_grafana_panels(dashboard_config, global_filters)
base_file_name = dashboard_config.base_json_file_name
base_json = json.load(
open(os.path.join(os.path.dirname(__file__), "dashboards", base_file_name))
)
base_json["panels"] = panels
# Update variables to use global_filters
global_filters_str = ",".join(global_filters)
variables = base_json.get("templating", {}).get("list", [])
for variable in variables:
variable["definition"] = variable["definition"].format(
global_filters=global_filters_str
)
variable["query"]["query"] = variable["query"]["query"].format(
global_filters=global_filters_str
)
tags = base_json.get("tags", []) or []
tags.append(f"rayVersion:{ray.__version__}")
base_json["tags"] = tags
base_json["uid"] = uid
# Ray metadata can be used to put arbitrary metadata
ray_meta = base_json.get("rayMeta", []) or []
ray_meta.append("supportsGlobalFilterOverride")
base_json["rayMeta"] = ray_meta
return json.dumps(base_json, indent=4), uid
def _generate_grafana_panels(
config: DashboardConfig, global_filters: List[str]
) -> List[dict]:
out = []
panel_global_filters = [*config.standard_global_filters, *global_filters]
for i, panel in enumerate(config.panels):
template = copy.deepcopy(PANEL_TEMPLATE)
template.update(
{
"title": panel.title,
"description": panel.description,
"id": panel.id,
"targets": _generate_targets(panel, panel_global_filters),
}
)
if panel.grid_pos:
template["gridPos"] = asdict(panel.grid_pos)
else:
template["gridPos"]["y"] = i // 2
template["gridPos"]["x"] = 12 * (i % 2)
template["yaxes"][0]["format"] = panel.unit
template["fill"] = panel.fill
template["stack"] = panel.stack
template["linewidth"] = panel.linewidth
out.append(template)
return out
def gen_incrementing_alphabets(length):
assert 65 + length < 96, "we only support up to 26 targets at a time."
# 65: ascii code of 'A'.
return list(map(chr, range(65, 65 + length)))
def _generate_targets(panel: Panel, panel_global_filters: List[str]) -> List[dict]:
targets = []
for target, ref_id in zip(
panel.targets, gen_incrementing_alphabets(len(panel.targets))
):
template = copy.deepcopy(TARGET_TEMPLATE)
template.update(
{
"expr": target.expr.format(
global_filters=",".join(panel_global_filters)
),
"legendFormat": target.legend,
"refId": ref_id,
}
)
targets.append(template)
return targets