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Add metrics templates

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Signed-off-by: Alex Leong <alex@buoyant.io>
This commit is contained in:
Alex Leong
2023-09-15 15:08:32 -07:00
parent efc588001f
commit 04a1f2fa68
3 changed files with 192 additions and 11 deletions
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docs/gitbook/tutorials/linkerd-progressive-delivery.md
+69 -3
View File
@@ -75,9 +75,65 @@ Create a deployment and a horizontal pod autoscaler:
kubectl apply -k https://github.com/fluxcd/flagger//kustomize/podinfo?ref=main
```
Create a canary custom resource for the podinfo deployment:
Create a metrics template and canary custom resources for the podinfo deployment:
```yaml
---
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
name: success-rate
namespace: test
spec:
provider:
type: prometheus
address: http://prometheus.linkerd-viz:9090
query: |
sum(
rate(
response_total{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
classification!="failure",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
)
/
sum(
rate(
response_total{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
)
* 100
---
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
name: latency
namespace: test
spec:
provider:
type: prometheus
address: http://prometheus.linkerd-viz:9090
query: |
histogram_quantile(
0.99,
sum(
rate(
response_latency_ms_bucket{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
) by (le)
)
---
apiVersion: flagger.app/v1beta1
kind: Canary
metadata:
@@ -122,18 +178,28 @@ spec:
stepWeight: 5
# Linkerd Prometheus checks
metrics:
- name: request-success-rate
- name: success-rate
templateRef:
name: success-rate
namespace: test
# minimum req success rate (non 5xx responses)
# percentage (0-100)
thresholdRange:
min: 99
interval: 1m
- name: request-duration
templateVariables:
direction: inbound
- name: latency
templateRef:
name: latency
namespace: test
# maximum req duration P99
# milliseconds
thresholdRange:
max: 500
interval: 30s
templateVariables:
direction: inbound
# testing (optional)
webhooks:
- name: acceptance-test
test/linkerd/test-canary.sh
+52 -6
View File
@@ -6,6 +6,40 @@ set -o errexit
REPO_ROOT=$(git rev-parse --show-toplevel)
cat <<EOF | kubectl apply -f -
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
name: success-rate
namespace: linkerd
spec:
provider:
type: prometheus
address: http://prometheus.linkerd-viz:9090
query: |
sum(
rate(
response_total{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
classification!="failure",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
)
/
sum(
rate(
response_total{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
)
* 100
EOF
cat <<EOF | kubectl apply -f -
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
@@ -59,12 +93,14 @@ spec:
maxWeight: 50
stepWeight: 10
metrics:
- name: request-success-rate
- name: success-rate
templateRef:
name: success-rate
namespace: linkerd
threshold: 99
interval: 1m
- name: request-duration
threshold: 500
interval: 30s
templateVariables:
direction: inbound
- name: latency
templateRef:
name: latency
@@ -218,12 +254,22 @@ spec:
maxWeight: 50
stepWeight: 10
metrics:
- name: request-success-rate
- name: success-rate
templateRef:
name: success-rate
namespace: linkerd
threshold: 99
interval: 1m
- name: request-duration
templateVariables:
direction: inbound
- name: latency
templateRef:
name: latency
namespace: linkerd
threshold: 500
interval: 30s
templateVariables:
direction: inbound
webhooks:
- name: http-acceptance-test
type: pre-rollout
test/linkerd/test-steps.sh
+71 -2
View File
@@ -4,6 +4,65 @@
set -o errexit
cat <<EOF | kubectl apply -f -
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
name: success-rate
namespace: linkerd
spec:
provider:
type: prometheus
address: http://prometheus.linkerd-viz:9090
query: |
sum(
rate(
response_total{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
classification!="failure",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
)
/
sum(
rate(
response_total{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
)
* 100
EOF
cat <<EOF | kubectl apply -f -
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
name: latency
namespace: linkerd
spec:
provider:
type: prometheus
address: http://prometheus.linkerd-viz:9090
query: |
histogram_quantile(
0.99,
sum(
rate(
response_latency_ms_bucket{
namespace="{{ namespace }}",
deployment=~"{{ target }}",
direction="{{ variables.direction }}"
}[{{ interval }}]
)
) by (le)
)
EOF
cat <<EOF | kubectl apply -f -
apiVersion: flagger.app/v1beta1
kind: Canary
@@ -32,12 +91,22 @@ spec:
maxWeight: 50
stepWeights: [10, 20, 30, 40, 50, 60]
metrics:
- name: request-success-rate
- name: success-rate
templateRef:
name: success-rate
namespace: linkerd
threshold: 99
interval: 1m
- name: request-duration
templateVariables:
direction: inbound
- name: latency
templateRef:
name: latency
namespace: linkerd
threshold: 500
interval: 30s
templateVariables:
direction: inbound
webhooks:
- name: load-test
url: http://flagger-loadtester.test/