英文:
value of one alert can be prnted in annotation description of another alert in Alert manager
问题
我有一个名为“sc_pcd_g2version”的警报，在AlertManager中列出。它返回值25。
我正在寻找一种方法，将这个值“25”提取并打印到AlertManager中另一个名为“sc_pcd_encryption_server”的警报的注释描述中。
请在粗体字中查看警报“sc_pcd_encryption_server”，我希望将其包含在内。要使用当前警报值，我们使用$labels.value，同样，如何提取另一个警报的值并在注释描述中打印它呢？
英文:
I have one alert "sc_pcd_g2version" listed in AlertManager. It returns value 25.
I am looking for a way to pull this value "25" and print it into the annotation description of another alert "sc_pcd_encryption_server" in Alert manager.
See in the alert sc_pcd_encryption_server you can see in Bold letter that i am looking for to be included. To use Current alert value we use $labels.value likewise how to pull value of another alert and print it in annotation description?
name: sc_pcd_g2version
expr: sc_pcd_g2version > 0
for: 1m
labels:
job: node
severity: warning
annotations:
message: Possibility of pcd g2version failure {{ $labels.instance }}.
summary: pcd g2version Check failure
name: sc_pcd_encryption_server
expr: sc_pcd_encryption_server > 0
for: 1m
labels:
job: node
severity: warning
annotations:
message: Possibility of **sc_pcd_g2version "25"** in encryption server failure {{ $labels.instance }}.
summary: pcd encryption server Check failure
答案1
得分: 0
通常情况下，这是不可能的。
但在您的确切情况下，您可以利用一个小技巧：在您的第二个警报中，使用 sc_pcd_g2version > 0 and on(instance) sc_pcd_encryption_server > 0 而不是表达式。
这样，当使用 {{ $value }} 时，您将获得 sc_pcd_g2version 的值，而不是 sc_pcd_encryption_server 的值。
类似这样：
name: sc_pcd_encryption_server
expr: sc_pcd_g2version > 0 and on(instance) sc_pcd_encryption_server > 0
for: 1m
labels:
job: node
severity: warning
annotations:
message: 可能出现 {{ $value }} 的情况，加密服务器故障 {{ $labels.instance }}。
summary: pcd加密服务器检查故障
这是可能的，因为您没有使用 sc_pcd_encryption_server 的标签，除了 instance，而我认为它们对两个指标都是相同的。
请确保 instance 足够匹配到指标。如果不够，请在 on 子句中添加所需的标签。
英文:
Generally, this is not possible.
But in your exact case you could utilize a little trick: use sc_pcd_g2version > 0 and on(instance) sc_pcd_encryption_server > 0 instead of expression in your second alert.
That way when using {{ $value }}, you get value of sc_pcd_g2version and not sc_pcd_encryption_server.
Something like this:
name: sc_pcd_encryption_server
expr: sc_pcd_g2version > 0 and on(instance) sc_pcd_encryption_server > 0
for: 1m
labels:
job: node
severity: warning
annotations:
message: Possibility of {{ $value }} in encryption server failure {{ $labels.instance }}.
summary: pcd encryption server Check failure
This is possible because you don't use labels of sc_pcd_encryption_server, other than instance, and they will be same for both metrics I believe.
Be sure to check that instance is enough to match to metrics. If not, add needed labels to on clause.
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