Ussuri: Magnum failed to get the size of cluster
Hi *, sorry for the repost, I forgot to edit the subject line. I'm trying to get magnum to work in an Ussuri environment. There are some issues I'm facing and would like to ask you for some pointers what I might be doing wrong. The control nodes would have access to the internet through a proxy, I would like to avoid that but I don't know yet what my local registry needs to look like. So to get it working I'll go with the http_proxy. The first attempts failed due to various reasons, now I'm stuck at the invalid discovery_url. After some search I found that I need to create a new discovery_url like this: controller02:~ # curl --silent -H "Accept: text/plain" https://discovery.etcd.io/new?size=1 Using that new URL I try to create a cluster like this: controller02:~ # openstack coe cluster create kubernetes-cluster-8 --cluster-template 9c7cfeff-3807-4b06-a4e6-a76f2ae0f612 --master-count 1 --node-count 1 --keypair eblock --discovery-url https://discovery.etcd.io/<UUID> The template contains the http and https proxy. The resulting error is this: ---snip--- HTTPSConnectionPool(host='discovery.etcd.io', port=443): Max retries exceeded with url: /<UUID>/_config/size (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd5e61dcfd0>: Failed to establish a new connection: [Errno 110] ETIMEDOUT',)): requests.exceptions.ConnectionError: HTTPSConnectionPool(host='discovery.etcd.io', port=443): Max retries exceeded with url: /<UUID>/_config/size (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd5e61dcfd0>: Failed to establish a new connection: [Errno 110] ETIMEDOUT',)) [...] requests.exceptions.ConnectionError: HTTPSConnectionPool(host='discovery.etcd.io', port=443): Max retries exceeded with url: /<UUID>/_config/size (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd5e61dcfd0>: Failed to establish a new connection: [Errno 110] ETIMEDOUT',)) [...] magnum.common.exception.GetClusterSizeFailed: Failed to get the size of cluster from 'https://discovery.etcd.io/<UUID>'. ---snip--- The stack trace is a little longer, of course, but this is the relevant part. Can anyone point me in the right direction? What am I missing? I also tried quay.io since discovery.etcd.io seems to be not maintained anymore, but there I can't even generate a new URL. Any help is greatly appreciated! Thanks Eugen
Replying to myself: It was fixed by adding environment variables to the magnum-conductor service: [Service] Environment="HTTP_PROXY=http://<HOST>:<PORT>" Environment="HTTPS_PROXY=http://<HOST>:<PORT>" Now I'm waiting for the first cluster to be created, the first resources were created successfully, now it seems stuck. But that's a different issue, this one can be considered resolved. Thanks, Eugen Zitat von Eugen Block <eblock@nde.ag>:
Hi *,
sorry for the repost, I forgot to edit the subject line.
I'm trying to get magnum to work in an Ussuri environment. There are some issues I'm facing and would like to ask you for some pointers what I might be doing wrong. The control nodes would have access to the internet through a proxy, I would like to avoid that but I don't know yet what my local registry needs to look like. So to get it working I'll go with the http_proxy. The first attempts failed due to various reasons, now I'm stuck at the invalid discovery_url. After some search I found that I need to create a new discovery_url like this:
controller02:~ # curl --silent -H "Accept: text/plain" https://discovery.etcd.io/new?size=1
Using that new URL I try to create a cluster like this:
controller02:~ # openstack coe cluster create kubernetes-cluster-8 --cluster-template 9c7cfeff-3807-4b06-a4e6-a76f2ae0f612 --master-count 1 --node-count 1 --keypair eblock --discovery-url https://discovery.etcd.io/<UUID>
The template contains the http and https proxy. The resulting error is this:
---snip--- HTTPSConnectionPool(host='discovery.etcd.io', port=443): Max retries exceeded with url: /<UUID>/_config/size (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd5e61dcfd0>: Failed to establish a new connection: [Errno 110] ETIMEDOUT',)): requests.exceptions.ConnectionError: HTTPSConnectionPool(host='discovery.etcd.io', port=443): Max retries exceeded with url: /<UUID>/_config/size (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd5e61dcfd0>: Failed to establish a new connection: [Errno 110] ETIMEDOUT',)) [...] requests.exceptions.ConnectionError: HTTPSConnectionPool(host='discovery.etcd.io', port=443): Max retries exceeded with url: /<UUID>/_config/size (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd5e61dcfd0>: Failed to establish a new connection: [Errno 110] ETIMEDOUT',)) [...] magnum.common.exception.GetClusterSizeFailed: Failed to get the size of cluster from 'https://discovery.etcd.io/<UUID>'. ---snip---
The stack trace is a little longer, of course, but this is the relevant part. Can anyone point me in the right direction? What am I missing? I also tried quay.io since discovery.etcd.io seems to be not maintained anymore, but there I can't even generate a new URL.
Any help is greatly appreciated!
Thanks Eugen
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Eugen Block