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Code Issues Releases Wiki Activity

Fix more broken links, add lazy-loading to images

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David Young
2022-07-10 11:01:46 +12:00
parent 635b43afb2
commit 76e919afe9
78 changed files with 166 additions and 155 deletions
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6
manuscript/docker-swarm/index.md
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@@ -59,7 +59,7 @@ Assuming a 3-node configuration, under normal circumstances the following is ill
* The **traefik** service (*in swarm mode*) receives incoming requests (*on HTTP and HTTPS*), and forwards them to individual containers. Traefik knows the containers names because it's able to read the docker socket.
* All 3 nodes run keepalived, at varying priorities. Since traefik is running as a swarm service and listening on TCP 80/443, requests made to the keepalived VIP and arriving at **any** of the swarm nodes will be forwarded to the traefik container (*no matter which node it's on*), and then onto the target backend.
![HA function](../images/docker-swarm-ha-function.png)
![HA function](../images/docker-swarm-ha-function.png){ loading=lazy }
### Node failure
@@ -71,7 +71,7 @@ In the case of a failure (or scheduled maintenance) of one of the nodes, the fol
* The **traefik** service is either restarted or unaffected, and as the backend containers stop/start and change IP, traefik is aware and updates accordingly.
* The keepalived VIP continues to function on the remaining nodes, and docker swarm continues to forward any traffic received on TCP 80/443 to the appropriate node.
![HA function](../images/docker-swarm-node-failure.png)
![HA function](../images/docker-swarm-node-failure.png){ loading=lazy }
### Node restore
@@ -82,7 +82,7 @@ When the failed (*or upgraded*) host is restored to service, the following is il
* Existing containers which were migrated off the node are not migrated backend
* Keepalived VIP regains full redundancy
![HA function](../images/docker-swarm-node-restore.png)
![HA function](../images/docker-swarm-node-restore.png){ loading=lazy }
### Total cluster failure