CICD tests - VPC delete failed#724
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eksctl delete cluster deletes nodegroups then the VPC in one atomic call. When node instances are killed, the VPC CNI can leak secondary ENIs in "available" state (known aws-vpc-cni-k8s behavior, worse on spot). These get discovered only when CloudFormation tries to delete the VPC afterward, failing the whole cleanup job. Split nodegroup and cluster deletion into separate eksctl calls and sweep available ENIs in between, plus once more if the cluster delete still fails. Extract the sweep into a shared anchor and resolve VPC_ID once per job instead of re-querying it five times. Ticket: MC-8739 Signed-off-by: Roberto Giovanardi <roberto.giovanardi@northern.tech>
dig +short leaks "communications error to X#53: timed out" onto stdout when it can't reach the DNS server, even with +short. The ingress test treated that string as a valid IP since it only checked for non-empty output, then fed it straight into curl --resolve, which failed to parse. Filter dig's output to a dotted-quad IPv4 pattern before accepting it, and cap dig to a single 2s attempt so one bad query doesn't stall the outer retry loop. Ticket: MC-8739 Signed-off-by: Roberto Giovanardi <roberto.giovanardi@northern.tech>
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Co-authored-with: Claude