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Avinash Sridharan commented on MESOS-1957: ------------------------------------------ [~jieyu] the goal here seems to be to introduce IPv6 support in the port-mapping network isolator. I am assuming we are not going to be pursing this anymore? > Port mapping IPv6 support > ------------------------- > > Key: MESOS-1957 > URL: https://issues.apache.org/jira/browse/MESOS-1957 > Project: Mesos > Issue Type: Task > Components: containerization > Reporter: Evelina Dumitrescu > Assignee: Evelina Dumitrescu > > It has to be investigated the best way for the port mapping module to know > that it uses and IPv6 environment. Possible ways are: > - by the IP address of the host eth0 > - passing a flag > A question that needs special attention is what should be done if eth0 or lo > have both IPv4 and IPv6 addresses. > Also, it may be necessary to keep separate counters for IPv4/IPv6. > The LOOPBACK_IP is currently hardcoded to 127.0.0.1/8. In the case of an IPv6 > environment, owing to the fact that this variable is used only for services > that run on a single node and might not be used in routing scenarios, it > should be investigated keeping this value or adding another variable > LOOPBACK_IPv6. This will affect the add/removeContainerIPFilters and > add/removeHostIPFilters methods. > Socket diagnosis needs to be done also for AF_INET6 family. > IPv6 disabling needs to be removed (eg: script << "echo 1 > > /proc/sys/net/ipv6/conf/all/disable_ipv6\n"; from > PortMappingIsolatorProcess::scripts). > For IPv4 some functionalities are disabled(eg: 'rp_filter' and > 'send_redirects' for lo) or enabled(eg: 'route_localnet' and 'accept_local' > for lo). Other ones are inherited by the container from the host(eg: > tcp_rmem, tcp_wmem). > The ephemeral port ranges can be different between IPv6 and IPv4(eg: > os::read("/proc/sys/net/ipv4/ip_local_port_range"); ). > The same thing should be done for IPv6. -- This message was sent by Atlassian JIRA (v6.4.14#64029)