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test/case/infix_containers: new test, verify environment
Signed-off-by: Joachim Wiberg <[email protected]>
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‎test/case/infix_containers/Readme.adoc‎

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Verifies Infix Docker container support:
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- Basic web server container running in host network mode
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- Container enable/disable functionality via configuration
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- Container environment variable configuration and access
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- Common setup with a docker0 bridge, automatic VETH pairs to container(s)
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- Connecting a container with a VETH pair to a standard Linux bridge
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- Assigning a physical Ethernet interface to a container
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include::container_enabled/Readme.adoc[]
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include::container_environment/Readme.adoc[]
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include::container_bridge/Readme.adoc[]
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include::container_phys/Readme.adoc[]

‎test/case/infix_containers/container_environment/Readme.adoc‎

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container_environment.adoc

‎test/case/infix_containers/container_environment/container_environment.adoc‎

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=== Container environment variables
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==== Description
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Verify that environment variables can be set in container configuration
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and are available inside the running container. Tests the 'env' list
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functionality by:
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1. Creating a container with multiple environment variables
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2. Using a custom script to extract env vars and serve them via HTTP
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3. Fetching the served content to verify environment variables are set correctly
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Uses the nftables container image with custom rc.local script.
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==== Topology
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ifdef::topdoc[]
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image::{topdoc}../../test/case/infix_containers/container_environment/topology.svg[Container environment variables topology]
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endif::topdoc[]
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ifndef::topdoc[]
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ifdef::testgroup[]
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image::container_environment/topology.svg[Container environment variables topology]
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endif::testgroup[]
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ifndef::testgroup[]
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image::topology.svg[Container environment variables topology]
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endif::testgroup[]
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endif::topdoc[]
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==== Test sequence
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. Set up topology and attach to target DUT
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. Configure data interface with static IPv4
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. Create container with environment variables
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. Verify container has started
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. Verify environment variables are available via HTTP
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. Verify basic connectivity to data interface
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. Verify environment variables in HTTP response
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<<<
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‎test/case/infix_containers/container_environment/test.py‎

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#!/usr/bin/env python3
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"""
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Container environment variables
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Verify that environment variables can be set in container configuration
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and are available inside the running container. Tests the 'env' list
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functionality by:
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1. Creating a container with multiple environment variables
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2. Using a custom script to extract env vars and serve them via HTTP
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3. Fetching the served content to verify environment variables are set correctly
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Uses the nftables container image with custom rc.local script.
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"""
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import infamy
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from infamy.util import until, to_binary
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with infamy.Test() as test:
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NAME = "web-env"
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DUTIP = "10.0.0.2"
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OURIP = "10.0.0.1"
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with test.step("Set up topology and attach to target DUT"):
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env = infamy.Env()
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target = env.attach("target", "mgmt")
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if not target.has_model("infix-containers"):
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test.skip()
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with test.step("Configure data interface with static IPv4"):
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_, ifname = env.ltop.xlate("target", "data")
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target.put_config_dict("ietf-interfaces", {
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"interfaces": {
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"interface": [{
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"name": f"{ifname}",
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"ipv4": {
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"address": [{
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"ip": f"{DUTIP}",
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"prefix-length": 24
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}]
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}
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}]
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}
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})
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with test.step("Create container with environment variables"):
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script = to_binary("""#!/bin/sh
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# Create HTTP response with environment variables
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printf "HTTP/1.1 200 OK\\r\\n" > /var/www/response.txt
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printf "Content-Type: text/plain\\r\\n" >> /var/www/response.txt
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printf "Connection: close\\r\\n\\r\\n" >> /var/www/response.txt
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# Add environment variables using printf to control encoding
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printf "TEST_VAR=\\"%s\\"\\n" "$TEST_VAR" >> /var/www/response.txt
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printf "APP_PORT=%s\\n" "$APP_PORT" >> /var/www/response.txt
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printf "DEBUG_MODE=\\"%s\\"\\n" "$DEBUG_MODE" >> /var/www/response.txt
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printf "PATH_WITH_SPACES=\\"%s\\"\\n" "$PATH_WITH_SPACES" >> /var/www/response.txt
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while true; do
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nc -l -p 8080 < /var/www/response.txt 2>>/var/www/debug.log || sleep 1
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done
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""")
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target.put_config_dict("infix-containers", {
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"containers": {
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"container": [
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{
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"name": f"{NAME}",
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"image": f"oci-archive:{infamy.Container.NFTABLES_IMAGE}",
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"env": [
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{"key": "TEST_VAR", "value": "hello-world"},
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{"key": "APP_PORT", "value": "8080"},
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{"key": "DEBUG_MODE", "value": "true"},
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{"key": "PATH_WITH_SPACES", "value": "/path with spaces/test"}
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],
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"network": {
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"host": True
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},
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"mount": [
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{
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"name": "rc.local",
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"content": script,
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"target": "/etc/rc.local",
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"mode": "0755"
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}
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],
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"volume": [{
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"name": "www",
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"target": "/var/www"
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}]
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}
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]
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}
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})
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with test.step("Verify container has started"):
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c = infamy.Container(target)
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until(lambda: c.running(NAME), attempts=60)
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with test.step("Verify environment variables are available via HTTP"):
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_, hport = env.ltop.xlate("host", "data")
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url = infamy.Furl(f"http://{DUTIP}:8080/env.html")
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with infamy.IsolatedMacVlan(hport) as ns:
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ns.addip(OURIP)
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with test.step("Verify basic connectivity to data interface"):
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ns.must_reach(DUTIP)
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with test.step("Verify environment variables in HTTP response"):
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until(lambda: url.nscheck(ns, "TEST_VAR=\"hello-world\""), attempts=10)
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until(lambda: url.nscheck(ns, "APP_PORT=8080"), attempts=10)
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until(lambda: url.nscheck(ns, "DEBUG_MODE=\"true\""), attempts=10)
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until(lambda: url.nscheck(ns, "PATH_WITH_SPACES=\"/path with spaces/test\""), attempts=10)
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test.succeed()

‎test/case/infix_containers/container_environment/topology.dot‎

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graph "1x2" {
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layout="neato";
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overlap="false";
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esep="+80";
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node [shape=record, fontname="DejaVu Sans Mono, Book"];
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edge [color="cornflowerblue", penwidth="2", fontname="DejaVu Serif, Book"];
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host [
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label="host | { <mgmt> mgmt | <data> data }",
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pos="0,12!",
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requires="controller",
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];
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target [
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label="{ <mgmt> mgmt | <data> data } | target",
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pos="10,12!",
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requires="infix",
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];
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host:mgmt -- target:mgmt [requires="mgmt", color=lightgrey]
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host:data -- target:data [color=black]
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}

‎test/case/infix_containers/container_environment/topology.svg‎

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‎test/case/infix_containers/infix_containers.yaml‎

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- name: container_enabled
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case: container_enabled/test.py
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# Disabled for v25.08, new/unstable
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# - name: container_environment
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# case: container_environment/test.py
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- name: container_bridge
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case: container_bridge/test.py
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