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Diffstat (limited to '')
| -rwxr-xr-x | share/doc/examples/container-images.sh | 2 | ||||
| -rw-r--r-- | share/doc/host-setup.old.txt | 230 | ||||
| -rw-r--r-- | share/doc/host-setup.txt | 9 |
3 files changed, 237 insertions, 4 deletions
diff --git a/share/doc/examples/container-images.sh b/share/doc/examples/container-images.sh index e6947e3..27c05fc 100755 --- a/share/doc/examples/container-images.sh +++ b/share/doc/examples/container-images.sh @@ -1,6 +1,6 @@ #!/bin/sh -# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net> +# Copyright (C) 2014-2022 Daniel Baumann <daniel.baumann@open-infrastructure.net> # # SPDX-License-Identifier: GPL-3.0+ # diff --git a/share/doc/host-setup.old.txt b/share/doc/host-setup.old.txt new file mode 100644 index 0000000..69368d1 --- /dev/null +++ b/share/doc/host-setup.old.txt @@ -0,0 +1,230 @@ +compute-tools: Host Setup (with ifupdown) +========================================= + + +1. Debian Packages +------------------- + +apt install bridge-utils ifenslave vlan + + +2. Boot Parameters +------------------ + +2.1 CGroup Memory Controller (optional) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +In order to enable the memory controller the following boot parameter needs to be used: + + cgroup_enable=memory + + +2.2 CGroup Swap Controller (optional) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +In order to enable the swap controller the following boot parameter needs to be used: + + swapaccount=1 + +2.3 vsyscall (legacy) +~~~~~~~~~~~~~~~~~~~~~ + +In order to be able to execute binaries linked to older libc versions +(<= wheezy) on newer linux versions (>= buster), add the following boot +parameter (see #881813 for more information): + + vsyscall=emulate + + +3. Networking +~~~~~~~~~~~~~ + +3.1 Configure Network Bridge +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +3.1.1 Bridge: 1 Interface, standalone, DHCP +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +cat > /etc/network/interfaces << EOF +# /etc/network/interfaces + +source /etc/network/interfaces.d/* + +auto lo +iface lo inet loopback + +iface eno1 inet manual + +auto bridge0 +iface bridge0 inet dhcp + bridge_ports eno1 + bridge_fd 0 + bridge_maxwait 0 + bridge_stp 0 +EOF + + +3.1.2 Bridge: 1 Interface, standalone, static +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +cat > /etc/network/interfaces << EOF +# /etc/network/interfaces + +source /etc/network/interfaces.d/* + +auto lo +iface lo inet loopback + +iface eno1 inet manual + +auto bridge0 +iface bridge0 inet static + address 10.0.0.2 + gateway 10.0.0.1 + netmask 24 + + pre-up ip link set eno1 down + pre-up ip link set eno1 up + + bridge_ports eno1 + bridge_fd 0 + bridge_maxwait 0 + bridge_stp 0 +EOF + + +3.1.3 Bridge: 2 logical Interfaces, subnet, static +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +cat > /etc/network/interfaces << EOF +# /etc/network/interfaces + +source /etc/network/interfaces.d/* + +auto lo +iface lo inet loopback + +allow-hotplug eno1 +iface eno1 inet dhcp + +auto bridge0 +iface bridge0 inet static + address 10.0.0.1 + netmask 24 + + pre-up ip link add name bridge0 type bridge + post-down ip link delete bridge0 type bridge + + bridge_fd 0 + bridge_maxwait 0 + bridge_stp 0 +EOF + + +3.1.4 Bridge: 3 physical Interfaces, vlan, bonding, static +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +cat > /etc/network/interfaces << EOF +# /etc/network/interfaces + +source /etc/network/interfaces.d/* + +auto lo +iface lo inet loopback + +allow-hotplug eno1 +iface eno1 inet dhcp + +iface eno2 inet manual + +iface eno3 inet manual + +auto bond0 +iface bond0 inet manual + up ip link set bond0 up + down ip link set bond0 down + + slaves eno2 eno3 + + bond-mode 4 + bond-miimon 100 + bond-downdelay 200 + bond-updelay 200 + bond-lacp-rate 1 + bond-xmit-hash-policy layer2+3 + +iface bond0.100 inet manual + vlan-raw-device bond0 + +auto bridge-100 +iface bridge-100 inet static + address 10.100.0.2 + netmask 24 + + bridge_ports bond0.100 + bridge_fd 0 + bridge_maxwait 0 + bridge_stp 0 +EOF + + +4. Enabling user namespace for unprivileged containers +------------------------------------------------------ + +Linux supports unprivileged containers with the user namespace. +By default the user namespace is disabled on Debian systems (see #898446). +To enable user namespace, edit the following file for a permant change: + + /etc/sysctl.d/zz-compute-tools.conf + sysctl -p + +or enable it manually with: + + echo 1 > /proc/sys/kernel/unprivileged_userns_clone + +Note that containers need to be started with the correct +configuration in /etc/compute-tools/container/config to run unpriviled +(private-users option). + + +5. Enabling container-shell +--------------------------- + +Managing privileged containers requires root privileges. In order to allow +unprivileged users to manage privileged containers without granting them +privileges or accounts, the container-shell can be used together with sudo +and a container user. + + sudo adduser --gecos "compute-tools,,," \ + --home /var/lib/open-infrastructure/container-shell \ + --shell /usr/bin/container-shell + + +6. IPv4 and IPv6 dual-stack +--------------------------- + +Examples for /etc/network/interfaces above work for IPv6 too when using correct +IPv6 addresses and netmasks. + +In order to use dual-stack, bridges must have a IPv4 address assigned +(can be a dummy one from a privacy range or 127.0.0.0/8). + +Let me repeat: dual-stack only works when you assign a primary IPv6 address +(private or public, doesn't matter) *and* add an additional IPv4 address. +Yes, the IPv4 address can be a private address, the containers can still +have a public IPv4 address. + +A complete example looks like this: + +auto bridge0 +iface bridge0 inet6 static + address 2a07:6b47:4::4:1 + netmask 48 + + up ip addr add 127.4.4.1 dev $IFACE + down ip addr del 127.4.4.1 dev $IFACE + + bridge_fd 0 + bridge_maxwait 0 + bridge_stp 0 + bridge-mcquerier 1 diff --git a/share/doc/host-setup.txt b/share/doc/host-setup.txt index b6da7f0..083e1aa 100644 --- a/share/doc/host-setup.txt +++ b/share/doc/host-setup.txt @@ -1,11 +1,14 @@ -compute-tools: Host Setup -========================= +compute-tools: Host Setup (with systemd-networkd) +================================================= 1. Debian Packages ------------------- -apt install systemd-networkd +apt install systemd-networkd bridge-utils + +Make sure to enable networkd (sudo systemctl enable systemd-networkd) +and convert /etc/network/interfaces (see systemd-networkd documentation). 2. Boot Parameters |