[router-advertiser] Add templated script to wait for pertinent interfaces to be ready before starting radvd#2558
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lguohan merged 1 commit intosonic-net:masterfrom Mar 2, 2019
jleveque:radv_wait_for_intf
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[router-advertiser] Add templated script to wait for pertinent interfaces to be ready before starting radvd#2558lguohan merged 1 commit intosonic-net:masterfrom jleveque:radv_wait_for_intf
lguohan merged 1 commit intosonic-net:masterfrom
jleveque:radv_wait_for_intf
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…aces to be ready before starting radvd
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can you describe the problem that this pr solves? |
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@lguohan: Added details to PR description. |
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Made to 201811 branch on 3/6/2019 |
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…aces to be ready before starting radvd (#2558)
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…aces to be ready before starting radvd (sonic-net#2558)
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…aces to be ready before starting radvd (sonic-net#2558)
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Add a wait_for_intf.sh.j2 template which, once generated, will create a script which will cause the container to wait for all VLAN interfaces to be ready before starting the radvd process.
This ensures that all interfaces which radvd needs to bind to to send router advertisements on are fully created and up before binding to them. It doesn't appear that this poses a problem for radvd as it does for dhcrelay (it's possible that radvd will attempt to rebind, whereas dhcrelay does not. I haven't examined the code), however I am applying the same mechanism to wait in this container as well just to ensure the radvd daemon is started after the pertinent interfaces are created and up.