The statefulset keeps track of the pods (hence the word stateful), they
will get assigned the same name and they will keep the same hostname every
time they die and come back,
ie: a statefulset named foobar with two pods will always have two pods
named foobar-0 and foobar-1
combined with a headless service, the pods are reachable at
foobar-{0/1}.<service_name>.<namespace>.svc.cluster.localOn Wed, Jun 23, 2021 at 9:08 AM nina guo <[email protected]> wrote: > May I ask what's the difference once I change to Statefulset? > > On Wednesday, June 23, 2021 at 2:42:56 PM UTC+8 [email protected] > wrote: > >> Hello, you can make use of Kubernetes Statefulset instead of deployment >> in this case >> >> On Wed, Jun 23, 2021 at 8:20 AM nina guo <[email protected]> wrote: >> >>> Hi guys, >>> >>> I'm implementing alertmanager HA. >>> >>> alertmanager0: >>> ----------------------------------------- >>> containers: >>> - name: alertmanager >>> image: quay.io/prometheus/alertmanager:latest >>> args: >>> - "--config.file=/etc/alertmanager/config.yml" >>> - "--storage.path=/alertmanager" >>> - "--cluster.listen-address=0.0.0.0:9094" >>> ----------------------------------------------- >>> >>> alertmanager1: >>> -------------------------------------------- >>> containers: >>> - name: alertmanager >>> image: quay.io/prometheus/alertmanager:latest >>> args: >>> - "--config.file=/etc/alertmanager/config.yml" >>> - "--storage.path=/alertmanager" >>> - "--cluster.listen-address=0.0.0.0:9095" >>> - "--cluster.peer=internal_ip_of_alertmanager0:9094" >>> >>> alertmanager service: >>> ------------------------------------------------- >>> apiVersion: v1 >>> kind: Service >>> metadata: >>> name: alertmanager >>> namespace: monitoring >>> spec: >>> selector: >>> app: alertmanager >>> type: NodePort >>> ports: >>> - port: 9093 >>> targetPort: 9093 >>> nodePort: 31000 >>> >>> I have a question that if alertmanager0 restarts, then the internal ip >>> will be changed. So I may have to update the deployment file and re-apply >>> again. >>> May I ask if there is a way to assign a DNS something like this to the >>> internal IP address? >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Prometheus Users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/prometheus-users/1cabcbca-7905-4337-807e-33b7359685c7n%40googlegroups.com >>> <https://groups.google.com/d/msgid/prometheus-users/1cabcbca-7905-4337-807e-33b7359685c7n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "Prometheus Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/prometheus-users/fb12fdf7-0bb1-4670-b9d1-312d6ebd481an%40googlegroups.com > <https://groups.google.com/d/msgid/prometheus-users/fb12fdf7-0bb1-4670-b9d1-312d6ebd481an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/CALnV8WgoDRaG9sSUyjaMn_P9L-eSMSh32Vu1MQpBsBdxcK12aQ%40mail.gmail.com.
