Kubernetes Monitoring Tools: Four Questions, Three Sources
Kubernetes monitoring tools split by which question they answer, not by rank. Here is what metrics-server, cAdvisor and kube-state-metrics each see.
#devops
25 posts tagged "Devops".
Kafka Health Check: Brokers, Clients and Canaries
A kafka health check answers one of two questions: can the cluster serve traffic, or is this client still working. Here is the right probe for each.
Elasticsearch Health Check: Green, Yellow, Red
An elasticsearch health check returns green, yellow or red, and yellow is where the false alarms live. Here is what to check and what to assert.
Consul Health Check: Types, States and Blind Spots
A consul health check decides which instances the catalog hands out. Here are the ten check types, what warning really does, and the failure it misses.
Canary Deployment: Rollout Steps and Pass Criteria
A canary deployment gives a new build a small slice of live traffic first, and the hard part is deciding what a passing slice actually looks like.
SSL Certificate Monitoring: Expiry, Chains and Alerts
SSL certificate monitoring watches expiry, the chain, the hostname and the protocol. Here is the warning ladder to use now that certificates last 200 days.