feat: kubernetes discovery readiness check #12852
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…hcheck # Conflicts: # apisix/discovery/kubernetes/init.lua
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apisix/discovery/kubernetes/init.lua
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| if not endpoint_dict then | ||
| core.log.error("failed to get lua_shared_dict:", get_endpoint_dict_name(id), | ||
| ", please check your APISIX version") | ||
| return false, "failed to get lua_shared_dict: ", get_endpoint_dict_name(id), |
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Please use .. for string concatenation.
apisix/discovery/kubernetes/init.lua
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| local function post_list(handle) | ||
| handle.endpoint_dict:safe_set("discovery_ready",true) |
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safe_set lacks error handling
apisix/init.lua
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| end | ||
| end | ||
| end | ||
| return true; |
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Please do not use semicolons.
| ngx.exit(200) | ||
| local http = require("resty.http") | ||
| local healthcheck_uri = "http://127.0.0.1:7085" .. "/status/ready" | ||
| for i = 1, 4 do |
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Add a comment explaining the rationale for selecting the number of retries.
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APISIX takes time to load data from the Kubernetes API server. In scenarios with small amounts of data, it may complete in less than 1 second. The maximum wait time I set, 5 seconds, is solely to account for network fluctuations.
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Description
This pull request adds a Kubernetes service discovery readiness status query to the /status/ready interface. Specifically, the readiness check calls the
check_discovery_readymethod of the service discovery module. Other types of service discovery, such as Consul, can also adapt this method to support the service discovery module.relate discuss:
#12635
Which issue(s) this PR fixes:
Fixes #
Checklist