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authorDave Barach <dave@barachs.net>2023-12-29 11:15:34 -0500
committerDave Barach <dave@barachs.net>2023-12-29 11:19:37 -0500
commitb7e66f4a30bbde62595615f72a386383d931eeae (patch)
tree70e0ce84bd488d62d72e985d4733f8f798e76099
parent44d9cbc49cf0712be3c005ccb91116c53dfb7991 (diff)
docs: minor updates to the lxc container test writeup
Fix minor differences between Ubuntu 18.04 LTS and Ubuntu 22.04 LTS when using the scheme to test new code. Type: docs Change-Id: I5810b6f3d76d8d98fa764b61828b1ca32507bd91 Signed-off-by: Dave Barach <dave@barachs.net>
-rw-r--r--docs/usecases/container_test.rst144
1 files changed, 75 insertions, 69 deletions
diff --git a/docs/usecases/container_test.rst b/docs/usecases/container_test.rst
index 8ad6285f8ed..9fd4bc0c5db 100644
--- a/docs/usecases/container_test.rst
+++ b/docs/usecases/container_test.rst
@@ -13,11 +13,8 @@ scenario.
OS / Distro test results
------------------------
-This setup has been tested on an Ubuntu 18.04 LTS system. If you’re
-feeling adventurous, the same scenario also worked on a recent Ubuntu
-20.04 “preview” daily build.
-
-Other distros may work fine, or not at all.
+This setup has been tested on Ubuntu 18.04 - 22.04 LTS systems. Other
+distros may work fine, or not at all.
Proxy Server
------------
@@ -113,6 +110,7 @@ containers, run vpp without installing it, etc.
type: disk
name: default
+
Set up the network configurations
---------------------------------
@@ -127,20 +125,20 @@ and host configuration:
::
- config:
- ipv4.address: 10.26.68.1/24
- ipv4.dhcp.ranges: 10.26.68.10-10.26.68.50
- ipv4.nat: "true"
- ipv6.address: none
- ipv6.nat: "false"
- description: ""
- name: internet
- type: bridge
- used_by:
- managed: true
- status: Created
- locations:
- - none
+ config:
+ ipv4.address: 10.26.68.1/24
+ ipv4.dhcp.ranges: 10.26.68.10-10.26.68.50
+ ipv4.nat: "true"
+ ipv6.address: none
+ ipv6.nat: "false"
+ description: ""
+ name: internet
+ type: bridge
+ used_by:
+ managed: true
+ status: Created
+ locations:
+ - none
Repeat the process with the “respond” and “initiate” networks, using
these configurations:
@@ -183,7 +181,6 @@ initiate network configuration
managed: true
status: Created
locations:
- - none
Create a “master” container image
---------------------------------
@@ -195,7 +192,7 @@ Make sure that e.g. public key auth ssh works.
::
- # lxd launch ubuntu:18.04 respond
+ # lxd launch ubuntu:22.04 respond
<spew>
# lxc exec respond bash
respond# cd /scratch/my-vpp-workspace
@@ -228,9 +225,9 @@ container image is fully set up before you help it have children:
Install handy script
--------------------
-See below for a handy script which executes lxc commands across the
-current set of running containers. I call it “lxc-foreach,” feel free to
-call the script Ishmael if you like.
+See below for a handy host script which executes lxc commands across
+the current set of running containers. I call it “lxc-foreach,” feel
+free to call the script Ishmael if you like.
Examples:
@@ -251,36 +248,44 @@ Here’s the script:
::
- #!/bin/bash
+ #!/bin/bash
+
+ set -u
+ export containers="respond initiate initiatehost respondhost"
+
+ if [ x$1 = "x" ] ; then
+ echo missing command
+ exit 1
+ fi
+
+ if [ $1 = "ssh" ] ; then
+ for c in $containers
+ do
+
+ inet=`lxc info $c | grep 10.38.33 | sed "s/.*inet://" | sed "s/\/24.*//" | tr -d " "`
+ if [ x$inet != "x" ] ; then
+ gnome-terminal --title "$c(ssh)" --command "/usr/bin/ssh -Y root@$inet"
+ fi
+ done
+ exit 0
+ fi
+
+ for c in $containers
+ do
+ inet=`lxc info $c | grep 10.38.33 | sed "s/.*inet://" | sed "s/\/24.*//" | tr -d " "`
+ if [ x$1 = "xstart" ] ; then
+ echo Starting $c
+ lxc start $c
+ elif [ x$1 = "xstop" ] ; then
+ echo Stopping $c
+ lxc stop $c
+ elif [ x$inet != "x" ] ; then
+ echo lxc $1 $c
+ lxc $1 $c
+ fi
+ done
- set -u
- export containers="respond respondhost initiate initiatehost dhcpserver"
-
- if [ x$1 = "x" ] ; then
- echo missing command
- exit 1
- fi
-
- if [ $1 = "ssh" ] ; then
- for c in $containers
- do
- inet=`lxc info $c | grep eth0 | grep -v inet6 | head -1 | cut -f 3`
- if [ x$inet = "x" ] ; then
- echo $c not started
- else
- gnome-terminal --command "/usr/bin/ssh $inet"
- fi
- done
- exit 0
- fi
-
- for c in $containers
- do
- echo lxc $1 $c
- lxc $1 $c
- done
-
- exit 0
+ exit 0
Test topology
-------------
@@ -289,24 +294,25 @@ Finally, we’re ready to describe a test topology. First, a picture:
::
- ===+======== management lan/bridge lxdbr0 (dhcp) ===========+===
- | | |
- | | |
- | | |
- v | v
- eth0 | eth0
- +------+ eth1 eth1 +------+
+ ===+======== management lan/bridge lxdbr0 (dhcp) ==============+===
+ | | |
+ | | |
+ | | |
+ v | v
+ eth0 | eth0
+ +---------+ eth1 eth1 +----------+
| respond | 10.26.88.100 <= internet bridge => 10.26.88.101 | initiate |
- +------+ +------+
+ +---------+ +----------+
eth2 / bvi0 10.166.14.2 | 10.219.188.2 eth3 / bvi0
- | | |
- | ("respond" bridge) | ("initiate" bridge) |
- | | |
- v | v
- eth2 10.166.14.3 | eth3 10.219.188.3
- +----------+ | +----------+
- | respondhost | | | respondhost |
- +----------+ | +----------+
+ | | |
+ | ("respond" bridge) | ("initiate" bridge) |
+ | | |
+ v | v
+ eth2 10.166.14.3 | eth3 10.219.188.3
+ +-------------+ | +-------------+
+ | respondhost | | | respondhost |
+ +-------------+ | +-------------+
+ v
eth0 (management lan) <========+========> eth0 (management lan)
Test topology discussion