A deployment that fails occasionally is often treated as bad luck. Repeated failures usually point to a system problem.
Check these first
- Are builds reproducible from a clean environment?
- Are runtime configuration and secrets managed separately from application code?
- Is the deployment process scripted, or does it depend on somebody remembering steps?
- Are database migrations reversible or at least observable?
- Is there a health check that proves the new version is actually working?
- Can you identify which version is running in each environment?
- Is rollback a documented operation rather than a panic response?
Reliability beats cleverness
For a small team, the best deployment system is usually the simplest one that produces the same result every time and fails visibly when assumptions are wrong.
If deployments are consuming more attention than product work, the first improvement is rarely another platform. It is finding the nondeterministic steps and removing them one by one.