atlas overview: add uptime and crashloop panels

This commit is contained in:
Brad Stein 2025-12-12 15:23:51 -03:00
parent 38ab8e3364
commit 8e39c6a28b
3 changed files with 410 additions and 107 deletions

View File

@ -81,7 +81,7 @@ CONTROL_SUFFIX = f"/{CONTROL_TOTAL}"
WORKER_SUFFIX = f"/{WORKER_TOTAL}"
CP_ALLOWED_NS = "kube-system|kube-public|kube-node-lease|longhorn-system|monitoring|flux-system"
LONGHORN_NODE_REGEX = "titan-1[2-9]|titan-2[24]"
GAUGE_WIDTHS = [5, 5, 5, 5, 4]
GAUGE_WIDTHS = [4, 3, 3, 4, 3, 3, 4]
CONTROL_WORKLOADS_EXPR = (
f'sum(kube_pod_info{{node=~"{CONTROL_REGEX}",namespace!~"{CP_ALLOWED_NS}"}}) or on() vector(0)'
)
@ -198,6 +198,18 @@ STUCK_TERMINATING_EXPR = (
' and on(namespace,pod) (kube_pod_deletion_timestamp{pod!=""} > bool 0)'
'))'
)
UPTIME_WINDOW = "30d"
UPTIME_AVG_EXPR = f"avg(avg_over_time(up[{UPTIME_WINDOW}]))"
UPTIME_NINES_EXPR = f"-log10(1 - clamp_max({UPTIME_AVG_EXPR}, 0.999999))"
UPTIME_THRESHOLDS = {
"mode": "absolute",
"steps": [
{"color": "red", "value": None},
{"color": "orange", "value": 2},
{"color": "yellow", "value": 3},
{"color": "green", "value": 3.5},
],
}
PROBLEM_TABLE_EXPR = (
"(time() - kube_pod_created{pod!=\"\"}) "
"* on(namespace,pod) group_left(node) kube_pod_info "
@ -555,61 +567,24 @@ def link_to(uid):
def build_overview():
panels = []
count_thresholds = {
"mode": "absolute",
"steps": [
{"color": "green", "value": None},
{"color": "yellow", "value": 1},
{"color": "orange", "value": 2},
{"color": "red", "value": 3},
],
}
row1_stats = [
(
1,
"Workers Ready",
f'sum(kube_node_status_condition{{condition="Ready",status="true",node=~"{WORKER_REGEX}"}})',
WORKER_SUFFIX,
WORKER_TOTAL,
None,
),
(
2,
"Control Plane Ready",
f'sum(kube_node_status_condition{{condition="Ready",status="true",node=~"{CONTROL_REGEX}"}})',
CONTROL_SUFFIX,
CONTROL_TOTAL,
None,
),
(
3,
"Control Plane Workloads",
CONTROL_WORKLOADS_EXPR,
None,
4,
link_to("atlas-pods"),
),
(
4,
"Problem Pods",
PROBLEM_PODS_EXPR,
None,
1,
link_to("atlas-pods"),
),
(
5,
"Stuck Terminating",
STUCK_TERMINATING_EXPR,
None,
1,
link_to("atlas-pods"),
),
]
def gauge_grid(idx):
width = GAUGE_WIDTHS[idx] if idx < len(GAUGE_WIDTHS) else 4
x = sum(GAUGE_WIDTHS[:idx])
return width, x
for idx, (panel_id, title, expr, suffix, ok_value, links) in enumerate(row1_stats):
thresholds = None
min_value = 0
max_value = ok_value or 5
if panel_id == 1:
max_value = WORKER_TOTAL
thresholds = {
{
"id": 1,
"title": "Workers Ready",
"expr": f'sum(kube_node_status_condition{{condition="Ready",status="true",node=~"{WORKER_REGEX}"}})',
"kind": "gauge",
"max_value": WORKER_TOTAL,
"thresholds": {
"mode": "absolute",
"steps": [
{"color": "red", "value": None},
@ -617,60 +592,100 @@ def build_overview():
{"color": "yellow", "value": WORKER_TOTAL - 1},
{"color": "green", "value": WORKER_TOTAL},
],
}
elif panel_id == 2:
max_value = CONTROL_TOTAL
thresholds = {
},
},
{
"id": 2,
"title": "Control Plane Ready",
"expr": f'sum(kube_node_status_condition{{condition="Ready",status="true",node=~"{CONTROL_REGEX}"}})',
"kind": "gauge",
"max_value": CONTROL_TOTAL,
"thresholds": {
"mode": "absolute",
"steps": [
{"color": "red", "value": None},
{"color": "green", "value": CONTROL_TOTAL},
],
}
elif panel_id in (3, 4, 5):
max_value = 4
thresholds = {
"mode": "absolute",
"steps": [
{"color": "green", "value": None},
{"color": "yellow", "value": 1},
{"color": "orange", "value": 2},
{"color": "red", "value": 3},
],
}
else:
thresholds = {
"mode": "absolute",
"steps": [
{"color": "green", "value": None},
{"color": "red", "value": max_value},
],
}
},
},
{
"id": 3,
"title": "Control Plane Workloads",
"expr": CONTROL_WORKLOADS_EXPR,
"kind": "stat",
"thresholds": count_thresholds,
"links": link_to("atlas-pods"),
},
{
"id": 27,
"title": "Atlas Uptime (30d, 9s)",
"expr": UPTIME_NINES_EXPR,
"kind": "stat",
"thresholds": UPTIME_THRESHOLDS,
"value_suffix": " 9s",
"text_mode": "value",
},
{
"id": 4,
"title": "Problem Pods",
"expr": PROBLEM_PODS_EXPR,
"kind": "stat",
"thresholds": count_thresholds,
"links": link_to("atlas-pods"),
},
{
"id": 6,
"title": "CrashLoop / ImagePull",
"expr": CRASHLOOP_EXPR,
"kind": "stat",
"thresholds": count_thresholds,
"links": link_to("atlas-pods"),
},
{
"id": 5,
"title": "Stuck Terminating",
"expr": STUCK_TERMINATING_EXPR,
"kind": "stat",
"thresholds": count_thresholds,
"links": link_to("atlas-pods"),
},
]
def gauge_grid(idx):
width = GAUGE_WIDTHS[idx] if idx < len(GAUGE_WIDTHS) else 4
x = sum(GAUGE_WIDTHS[:idx])
return width, x
for idx, item in enumerate(row1_stats):
panel_id = item["id"]
width, x = gauge_grid(idx)
if panel_id in (3, 4, 5):
grid = {"h": 5, "w": width, "x": x, "y": 0}
kind = item.get("kind", "gauge")
if kind == "stat":
panels.append(
stat_panel(
panel_id,
title,
expr,
{"h": 5, "w": width, "x": x, "y": 0},
thresholds=thresholds,
item["title"],
item["expr"],
grid,
thresholds=item.get("thresholds"),
legend=None,
links=links,
text_mode="value",
links=item.get("links"),
text_mode=item.get("text_mode", "value"),
value_suffix=item.get("value_suffix"),
)
)
else:
panels.append(
gauge_panel(
panel_id,
title,
expr,
{"h": 5, "w": width, "x": x, "y": 0},
min_value=min_value,
max_value=max_value,
thresholds=thresholds,
links=links,
item["title"],
item["expr"],
grid,
min_value=0,
max_value=item.get("max_value", 5),
thresholds=item.get("thresholds"),
links=item.get("links"),
)
)

View File

@ -17,7 +17,7 @@
},
"gridPos": {
"h": 5,
"w": 5,
"w": 4,
"x": 0,
"y": 0
},
@ -78,8 +78,8 @@
},
"gridPos": {
"h": 5,
"w": 5,
"x": 5,
"w": 3,
"x": 4,
"y": 0
},
"targets": [
@ -131,8 +131,8 @@
},
"gridPos": {
"h": 5,
"w": 5,
"x": 10,
"w": 3,
"x": 7,
"y": 0
},
"targets": [
@ -196,6 +196,75 @@
}
]
},
{
"id": 27,
"type": "stat",
"title": "Atlas Uptime (30d, 9s)",
"datasource": {
"type": "prometheus",
"uid": "atlas-vm"
},
"gridPos": {
"h": 5,
"w": 4,
"x": 10,
"y": 0
},
"targets": [
{
"expr": "-log10(1 - clamp_max(avg(avg_over_time(up[30d])), 0.999999))",
"refId": "A"
}
],
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "orange",
"value": 2
},
{
"color": "yellow",
"value": 3
},
{
"color": "green",
"value": 3.5
}
]
},
"unit": "none",
"custom": {
"displayMode": "auto",
"valueSuffix": " 9s"
}
},
"overrides": []
},
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "center",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "value"
}
},
{
"id": 4,
"type": "stat",
@ -206,8 +275,8 @@
},
"gridPos": {
"h": 5,
"w": 5,
"x": 15,
"w": 3,
"x": 14,
"y": 0
},
"targets": [
@ -271,6 +340,81 @@
}
]
},
{
"id": 6,
"type": "stat",
"title": "CrashLoop / ImagePull",
"datasource": {
"type": "prometheus",
"uid": "atlas-vm"
},
"gridPos": {
"h": 5,
"w": 3,
"x": 17,
"y": 0
},
"targets": [
{
"expr": "sum(max by (namespace,pod) (kube_pod_container_status_waiting_reason{reason=~\"CrashLoopBackOff|ImagePullBackOff\"}))",
"refId": "A"
}
],
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 1
},
{
"color": "orange",
"value": 2
},
{
"color": "red",
"value": 3
}
]
},
"unit": "none",
"custom": {
"displayMode": "auto"
}
},
"overrides": []
},
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "center",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "value"
},
"links": [
{
"title": "Open atlas-pods dashboard",
"url": "/d/atlas-pods",
"targetBlank": true
}
]
},
{
"id": 5,
"type": "stat",

View File

@ -26,7 +26,7 @@ data:
},
"gridPos": {
"h": 5,
"w": 5,
"w": 4,
"x": 0,
"y": 0
},
@ -87,8 +87,8 @@ data:
},
"gridPos": {
"h": 5,
"w": 5,
"x": 5,
"w": 3,
"x": 4,
"y": 0
},
"targets": [
@ -140,8 +140,8 @@ data:
},
"gridPos": {
"h": 5,
"w": 5,
"x": 10,
"w": 3,
"x": 7,
"y": 0
},
"targets": [
@ -205,6 +205,75 @@ data:
}
]
},
{
"id": 27,
"type": "stat",
"title": "Atlas Uptime (30d, 9s)",
"datasource": {
"type": "prometheus",
"uid": "atlas-vm"
},
"gridPos": {
"h": 5,
"w": 4,
"x": 10,
"y": 0
},
"targets": [
{
"expr": "-log10(1 - clamp_max(avg(avg_over_time(up[30d])), 0.999999))",
"refId": "A"
}
],
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "orange",
"value": 2
},
{
"color": "yellow",
"value": 3
},
{
"color": "green",
"value": 3.5
}
]
},
"unit": "none",
"custom": {
"displayMode": "auto",
"valueSuffix": " 9s"
}
},
"overrides": []
},
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "center",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "value"
}
},
{
"id": 4,
"type": "stat",
@ -215,8 +284,8 @@ data:
},
"gridPos": {
"h": 5,
"w": 5,
"x": 15,
"w": 3,
"x": 14,
"y": 0
},
"targets": [
@ -280,6 +349,81 @@ data:
}
]
},
{
"id": 6,
"type": "stat",
"title": "CrashLoop / ImagePull",
"datasource": {
"type": "prometheus",
"uid": "atlas-vm"
},
"gridPos": {
"h": 5,
"w": 3,
"x": 17,
"y": 0
},
"targets": [
{
"expr": "sum(max by (namespace,pod) (kube_pod_container_status_waiting_reason{reason=~\"CrashLoopBackOff|ImagePullBackOff\"}))",
"refId": "A"
}
],
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 1
},
{
"color": "orange",
"value": 2
},
{
"color": "red",
"value": 3
}
]
},
"unit": "none",
"custom": {
"displayMode": "auto"
}
},
"overrides": []
},
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "center",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "value"
},
"links": [
{
"title": "Open atlas-pods dashboard",
"url": "/d/atlas-pods",
"targetBlank": true
}
]
},
{
"id": 5,
"type": "stat",