{"action":"created","issue":{"url":"https://api.github.com/repos/projectcalico/canal/issues/130","repository_url":"https://api.github.com/repos/projectcalico/canal","labels_url":"https://api.github.com/repos/projectcalico/canal/issues/130/labels{/name}","comments_url":"https://api.github.com/repos/projectcalico/canal/issues/130/comments","events_url":"https://api.github.com/repos/projectcalico/canal/issues/130/events","html_url":"https://github.com/projectcalico/canal/issues/130","id":344641285,"node_id":"MDU6SXNzdWUzNDQ2NDEyODU=","number":130,"title":"is it possible to add canal to an existing cluster that uses flannel?","user":{"login":"xaka","id":504813,"node_id":"MDQ6VXNlcjUwNDgxMw==","avatar_url":"https://avatars3.githubusercontent.com/u/504813?v=4","gravatar_id":"","url":"https://api.github.com/users/xaka","html_url":"https://github.com/xaka","followers_url":"https://api.github.com/users/xaka/followers","following_url":"https://api.github.com/users/xaka/following{/other_user}","gists_url":"https://api.github.com/users/xaka/gists{/gist_id}","starred_url":"https://api.github.com/users/xaka/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xaka/subscriptions","organizations_url":"https://api.github.com/users/xaka/orgs","repos_url":"https://api.github.com/users/xaka/repos","events_url":"https://api.github.com/users/xaka/events{/privacy}","received_events_url":"https://api.github.com/users/xaka/received_events","type":"User","site_admin":false},"labels":[{"id":371731821,"node_id":"MDU6TGFiZWwzNzE3MzE4MjE=","url":"https://api.github.com/repos/projectcalico/canal/labels/kind/support","name":"kind/support","color":"cc317c","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-07-25T23:23:23Z","updated_at":"2018-07-26T18:33:29Z","closed_at":null,"author_association":"NONE","body":"I have an old k8s cluster that's running in production. It uses cni + flannel for networking. It's been decided that we need to have network policies, which flannel doesn't support.\r\n\r\nI'm curious whether it's possible to add calico/canal to an existing cluster that uses flannel already?\r\n\r\nThanks."},"comment":{"url":"https://api.github.com/repos/projectcalico/canal/issues/comments/408193186","html_url":"https://github.com/projectcalico/canal/issues/130#issuecomment-408193186","issue_url":"https://api.github.com/repos/projectcalico/canal/issues/130","id":408193186,"node_id":"MDEyOklzc3VlQ29tbWVudDQwODE5MzE4Ng==","user":{"login":"tmjd","id":14025438,"node_id":"MDQ6VXNlcjE0MDI1NDM4","avatar_url":"https://avatars3.githubusercontent.com/u/14025438?v=4","gravatar_id":"","url":"https://api.github.com/users/tmjd","html_url":"https://github.com/tmjd","followers_url":"https://api.github.com/users/tmjd/followers","following_url":"https://api.github.com/users/tmjd/following{/other_user}","gists_url":"https://api.github.com/users/tmjd/gists{/gist_id}","starred_url":"https://api.github.com/users/tmjd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tmjd/subscriptions","organizations_url":"https://api.github.com/users/tmjd/orgs","repos_url":"https://api.github.com/users/tmjd/repos","events_url":"https://api.github.com/users/tmjd/events{/privacy}","received_events_url":"https://api.github.com/users/tmjd/received_events","type":"User","site_admin":false},"created_at":"2018-07-26T18:33:29Z","updated_at":"2018-07-26T18:33:29Z","author_association":"MEMBER","body":"It is not a simple matter to switch to canal from flannel.  I am not aware of any way to do this on an existing cluster and maintain connectivity. It basically requires a full networking swap."}}
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