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Why does my CI pipeline fail only on merge but pass on pull requests?
Merge pipelines and pull request pipelines often run under different security rules, even though the code is the same. Many CI systems restrict secrets, credentials, or cloud access depending on how the pipeline was triggered. A pipeline running on a merge to the main branch might use a different idRead more
Merge pipelines and pull request pipelines often run under different security rules, even though the code is the same.
Many CI systems restrict secrets, credentials, or cloud access depending on how the pipeline was triggered. A pipeline running on a merge to the main branch might use a different identity, environment, or permission set than one running on a pull request.
This makes failures feel inconsistent, but the difference is usually intentional from a security perspective.
Takeaway: When CI behaves differently, compare identities and secrets—not code changes.
See lessWhy are my cloud costs increasing even though traffic hasn’t changed?
Stable traffic doesn’t guarantee stable cost. Idle resources, misconfigured autoscaling, forgotten snapshots, and pricing model changes all contribute to rising bills without any traffic increase. Autoscaling that grows quickly but shrinks slowly is a particularly common cause. Costs usually grow quRead more
Stable traffic doesn’t guarantee stable cost.
Idle resources, misconfigured autoscaling, forgotten snapshots, and pricing model changes all contribute to rising bills without any traffic increase. Autoscaling that grows quickly but shrinks slowly is a particularly common cause.
Costs usually grow quietly until someone checks the bill.
Takeaway: Cost control requires auditing idle and scaling resources, not just traffic.
See lessWhy does my Azure VM fail to access storage even though the managed identity has permissions?
A managed identity must be reachable and correctly scoped before it can be used. If the VM can’t obtain tokens, the issue is often networking, disabled identity endpoints, or role assignments applied at the wrong scope. Even when everything is correct, permission changes can take a few minutes to prRead more
A managed identity must be reachable and correctly scoped before it can be used.
If the VM can’t obtain tokens, the issue is often networking, disabled identity endpoints, or role assignments applied at the wrong scope. Even when everything is correct, permission changes can take a few minutes to propagate.
People often assume identity assignment is instant and global, which leads to confusion during testing.
Takeaway: Managed identities depend on both token access and correct scope.
See lessWhy does my Kubernetes pod stay in CrashLoopBackOff with no obvious error logs?
This happens when the container exits too quickly for logs to be captured, usually because it fails during startup. If a container crashes immediately due to a bad command, missing file, or failed initialization, Kubernetes restarts it repeatedly. The useful error often appears only in the previousRead more
This happens when the container exits too quickly for logs to be captured, usually because it fails during startup.
If a container crashes immediately due to a bad command, missing file, or failed initialization, Kubernetes restarts it repeatedly. The useful error often appears only in the previous container run, not the current one. Pod events are also important here, because probes or exit codes often explain what’s happening long before logs do.
Many people focus only on live logs and miss the fact that Kubernetes keeps a short history of failed runs.
Takeaway: When logs look empty, pod events and previous container logs usually explain the crash.
See lessWhy does my autoscaling group terminate healthy instances?
Autoscaling is focused on meeting capacity targets, not preserving individual instances. If scale-in policies are aggressive and instance protection isn’t enabled, the autoscaler will happily terminate healthy instances to reduce capacity. From its perspective, everything is working as designed. ProRead more
Autoscaling is focused on meeting capacity targets, not preserving individual instances.
If scale-in policies are aggressive and instance protection isn’t enabled, the autoscaler will happily terminate healthy instances to reduce capacity. From its perspective, everything is working as designed.
Problems arise when workloads aren’t prepared for termination or don’t drain gracefully before shutdown.
Takeaway: Autoscaling protects numbers, not workloads, unless you configure it to.
See less