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Fix Running/Stopped behavior.

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This commit is contained in:
Michael Lipp 2023-08-13 22:24:40 +02:00
parent 97225b1c01
commit af49c952fd
1 changed files with 31 additions and 18 deletions
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49
org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/StsReconciler.java
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@ -66,28 +66,41 @@ import org.jdrupes.vmoperator.manager.VmDefChanged.Type;
DynamicKubernetesApi stsApi = new DynamicKubernetesApi("apps", "v1",
"statefulsets", channel.client());
// Maybe delete
// If exists, adjust replicas
var metadata = event.object().getMetadata();
var existing = K8s.get(stsApi, metadata);
if (existing.isPresent()) {
var current = GsonPtr.to(existing.get().getRaw())
.to("spec").getAsInt("replicas").orElse(1);
int desired;
if (event.type() == Type.DELETED) {
desired = 0;
} else {
var state = GsonPtr.to((JsonObject) model.get("cr"))
.to("spec", "vm").getAsString("state").orElse("Stopped");
desired = "Running".equals(state) ? 1 : 0;
}
if (desired != current) {
PatchOptions opts = new PatchOptions();
opts.setFieldManager("kubernetes-java-kubectl-apply");
stsApi.patch(metadata.getNamespace(), metadata.getName(),
V1Patch.PATCH_FORMAT_JSON_PATCH,
new V1Patch("[{\"op\": \"replace\", \"path\": "
+ "\"/spec/replicas\", \"value\": " + desired + "}]"),
opts).throwsApiException();
}
}
// Maybe delete (replicas have been set to 0)
if (event.type() == Type.DELETED) {
var meta = GsonPtr.to((JsonObject) model.get("cr")).to("metadata");
PatchOptions opts = new PatchOptions();
opts.setFieldManager("kubernetes-java-kubectl-apply");
stsApi.patch(meta.getAsString("namespace").get(),
meta.getAsString("name").get(), V1Patch.PATCH_FORMAT_JSON_PATCH,
new V1Patch("[{\"op\": \"replace\", "
+ "\"path\": \"/spec/replicas\", \"value\": 0}]"),
opts).throwsApiException();
stsApi.delete(meta.getAsString("namespace").get(),
meta.getAsString("name").get()).throwsApiException();
stsApi.delete(metadata.getNamespace(), metadata.getName())
.throwsApiException();
return;
}
// Never change existing if replicas is greater 0 (would cause
// update and thus VM restart). Apply will happen when replicas
// changes from 0 to 1, i.e. on next powerdown/powerup.
var metadata = event.object().getMetadata();
var existing = K8s.get(stsApi, metadata);
if (existing.isPresent() && GsonPtr.to(existing.get().getRaw())
.to("spec").getAsInt("replicas").orElse(1) > 0) {
// Apart from replicas, only properties that are of no interest
// may be changed for an existing stateful set.
if (existing.isPresent()) {
return;
}