Support stickyness #117
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enhancement
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jerome-jutteau
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Aug 22, 2022
sevice.spec.sessionAffinity: ClientIP feature cannot be implemented in current version of LBU service as session stickiness cannot only rely on client's IP. However, session stickiness is still only possible through web cookies using LBCookieStickinessPolicy or AppCookieStickinessPolicy. This commit allow CCM users to configure a LBCookieStickinessPolicy using annotations: 1. service.beta.kubernetes.io/osc-load-balancer-affinity When this annotation is set to "lb-cookie", a pre-defined LBCookieStickinessPolicy will be attached to the load-balancer. 2. service.beta.kubernetes.io/osc-load-balancer-lb-cookie-expiration-period When osc-load-balancer-affinity annotation is set to "lb-cookie", this annotation will configure cookie expiration period of LBCookieStickinessPolicy. When not set or set to 1, the cookie will not expire. When set to a value above 1, the provided value is the expiration period in seconds. XXX DEV / WIP NOTES XXX Pour activer les stickiness policies, il fait aussi appeler https://docs.outscale.com/lbu#setloadbalancerpoliciesoflistener SAUF que ça doit s'appliquer sur un port dont le protocol est "http" ou "http" et non "tcp" comme le lb créé. A noter que le user k8s ne peut spécifier que tcp, udp ou sctp. solution 1: ajouter une annotation pour lister les ports qui sont en http et non en tcp Ca en fait une solution bloaté et ajoute une compléxité pour une feature qui n'est pas encore demandée par un client. closes #117 Signed-off-by: Jérôme Jutteau <jerome.jutteau@outscale.com>
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What would you like to be added:
I would need to redirect a user accessing a Service to the same backend.
This could be done using Load Balancer Policy.
This may be done by supporting
sevice.spec.sessionAffinity: ClientIP(check doc, types) or using a specific annotation for setting Load Balancer Policy.Why is this needed:
Some application need to use their local session data (like in PHP for instance) in order to retrieve user's data behind a session cookie. So the user need to be redirected to the same backend.
/kind feature
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