nebulous/optimiser-controller
Code Issues Proposed changes

Add more logging to redeployment flow

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Change-Id: Ib12e83b9b90f0e2edbc40be4748836bbf81bf52d
This commit is contained in:
Rudi Schlatte 2024-04-24 18:57:51 +02:00
parent 28402e657b
commit bb1951f9b6
2 changed files with 33 additions and 17 deletions
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7
optimiser-controller/src/main/java/eu/nebulouscloud/optimiser/controller/NebulousApp.java
View File

@ -451,7 +451,12 @@ public class NebulousApp {
* @param variableValues A JSON object with keys being variable names and
* their values the replacement value, for example:
*
* <pre>{@code { 'cpu': 8, 'memory': 4906 }}</pre>
* <pre>{@code
* {
* 'spec_components_0_traits_0_properties_cpu': 8,
* 'spec_components_0_traits_0_properties_memory': 4906
* }
* }</pre>
*
* The variable names are generated by the UI and are cross-referenced
* with locations in the KubeVela file.

43
optimiser-controller/src/main/java/eu/nebulouscloud/optimiser/controller/NebulousAppDeployer.java
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@ -488,7 +488,16 @@ public class NebulousAppDeployer {
// 5. Call labelNodes for added nodes, to-be-removed nodes
// 6. Call deployApplication
// 7. call scaleIn endpoint with list of removed node names
Main.logFile("redeploy-kubevela-" + appUUID + ".yaml", updatedKubevela);
String kubevelaString = "---\n# Did not manage to create rewritten KubeVela";
try {
kubevelaString = yamlMapper.writeValueAsString(updatedKubevela);
} catch (JsonProcessingException e) {
log.error("Failed to convert KubeVela to YAML; this should never happen", e);
app.setStateFailed();
return;
}
Main.logFile("redeploy-rewritten-kubevela-" + appUUID + ".yaml", kubevelaString);
// ------------------------------------------------------------
// 1. Extract node requirements
@ -520,12 +529,11 @@ public class NebulousAppDeployer {
if (newCount > oldCount) {
int nAdd = newCount - oldCount;
allMachineNames = componentNodeNames.get(componentName);
log.debug("Adding {} nodes to component {}", nAdd, componentName);
log.info("Node requirements unchanged but need to add {} nodes to component {}", nAdd, componentName);
// TODO: filter by app resources (check enabled: true in resources array)
List<NodeCandidate> candidates = conn.findNodeCandidates(newR, appUUID);
if (candidates.isEmpty()) {
log.error("Could not find node candidates for requirements: {}",
newR);
log.error("Could not find node candidates for requirements: {}", newR);
continue;
}
for (int nodeNumber = 1; nodeNumber <= nAdd; nodeNumber++) {
@ -555,7 +563,7 @@ public class NebulousAppDeployer {
// could then reassign during subsequent scaleOut.
// Something for version 2.
int nRemove = oldCount - newCount;
log.debug("Removing {} nodes from component {}", nRemove, componentName);
log.info("Node requirements unchanged but need to remove {} nodes from component {}", nRemove, componentName);
// We could be a bit smarter here: remove cloud instances
// first and keep edge nodes in use, on the assumption
// that it's better to keep using edge nodes since cloud
@ -567,7 +575,7 @@ public class NebulousAppDeployer {
nodesToRemove.addAll(removedInstances);
removedInstances.forEach((nodeName) -> nodeLabels.addObject().put(nodeName, "nebulouscloud.eu/" + componentName + "=no"));
} else {
log.debug("Nothing changed for component {}", componentName);
log.info("Node requirements and replica count unchanged, nothing to do for component {}", componentName);
allMachineNames = componentNodeNames.get(componentName);
}
} else {
@ -575,7 +583,7 @@ public class NebulousAppDeployer {
// current machines and start fresh ones
nodesToRemove.addAll(componentNodeNames.get(componentName));
allMachineNames = new HashSet<>();
log.debug("Redeploying all nodes of component {}", componentName);
log.info("Node requirements changed, need to redeploy all nodes of component {}", componentName);
// TODO: filter by app resources (check enabled: true in resources array)
List<NodeCandidate> candidates = conn.findNodeCandidates(newR, appUUID);
if (candidates.size() == 0) {
@ -609,29 +617,32 @@ public class NebulousAppDeployer {
Main.logFile("redeploy-worker-counts-" + appUUID + ".txt", componentReplicaCounts);
if (!nodesToAdd.isEmpty()) {
log.info("Starting scaleout: {}", nodesToAdd);
Main.logFile("redeploy-scaleout-" + appUUID + ".json", nodesToAdd.toPrettyString());
conn.scaleOut(appUUID, clusterName, nodesToAdd);
waitForClusterDeploymentFinished(conn, clusterName, appUUID);
} else {
log.info("No nodes added, skipping scaleout");
}
log.info("Labeling nodes: {}", nodeLabels);
Main.logFile("redeploy-labelNodes-" + appUUID + ".json", nodeLabels.toPrettyString());
conn.labelNodes(appUUID, clusterName, nodeLabels);
String kubevelaString = "---\n# Did not manage to create rewritten KubeVela";
try {
kubevelaString = yamlMapper.writeValueAsString(updatedKubevela);
Main.logFile("redeploy-rewritten-kubevela-" + appUUID + ".yaml", kubevelaString);
} catch (JsonProcessingException e) {
log.error("Failed to convert KubeVela to YAML; this should never happen", e);
app.setStateFailed();
return;
}
log.info("Redeploying application: {}", kubevelaString);
conn.deployApplication(appUUID, clusterName, app.getName(), kubevelaString);
if (!nodesToRemove.isEmpty()) {
Main.logFile("redeploy-scalein-" + appUUID + ".json", nodesToRemove);
log.info("Starting scalein: {}", nodesToRemove);
conn.scaleIn(appUUID, clusterName, nodesToRemove);
} else {
log.info("No nodes removed, skipping scalein");
}
app.setStateDeploymentFinished(componentRequirements, componentReplicaCounts,
componentNodeNames, nodeEdgeCandidates, updatedKubevela);
log.info("Redeployment finished");
}
}