zhangyang-libzt/docs/docker_linux_testing.md

Testing

Docker Unit Tests

Each unit test will temporarily copy all required ZeroTier binaries into its local directory, then build the netcon_dockerfile and monitor_dockerfile. Once built, each container will be run and perform tests and monitoring specified in netcon_entrypoint.sh and monitor_entrypoint.sh

Results will be written to the tests/docker-test/_results/ directory which is a common shared volume between all containers involved in the test and will be a combination of raw and formatted dumps to files whose names reflect the test performed. In the event of failure, FAIL. will be prepended to the result file's name (e.g. FAIL.my_application_1.0.2.x86_64), likewise in the event of success, OK. will be prepended.

To run unit tests:

1. Disable SELinux. This is so the containers can use a shared volume to exchange MD5 sums and address information.

2. Set up your own network at https://my.zerotier.com/. For our example we'll just use the Earth network (8056c2e21c000001). Use its network id as follows:

3. Generate two pairs of identity keys. Each public/private pair will be used by the netcon and monitor containers:

   mkdir -p /tmp/netcon_first cp -f ./netcon/liblwip.so /tmp/netcon_first ./zerotier-netcon-service -d -p8100 /tmp/netcon_first while [ ! -f /tmp/netcon_first/identity.secret ]; do sleep 0.1 done ./zerotier-cli -D/tmp/netcon_first join 8056c2e21c000001 kill cat /tmp/netcon_first/zerotier-one.pid

   mkdir -p /tmp/netcon_second cp -f ./netcon/liblwip.so /tmp/netcon_second ./zerotier-netcon-service -d -p8101 /tmp/netcon_second while [ ! -f /tmp/netcon_second/identity.secret ]; do sleep 0.1 done ./zerotier-cli -D/tmp/netcon_second join 8056c2e21c000001 kill cat /tmp/netcon_second/zerotier-one.pid

4. Copy the identity files to your docker-test directory. Names will be altered during copy step so the dockerfiles know which identities to use for each image/container:

   cp /tmp/netcon_first/identity.public ./netcon/docker-test/netcon_identity.public cp /tmp/netcon_first/identity.secret ./netcon/docker-test/netcon_identity.secret

   cp /tmp/netcon_second/identity.public ./netcon/docker-test/monitor_identity.public cp /tmp/netcon_second/identity.secret ./netcon/docker-test/monitor_identity.secret

5. Place a blank network config file in the netcon/docker-test directory (e.g. "8056c2e21c000001.conf")

• This will be used to inform test-specific scripts what network to use for testing

After you've created your network and placed its blank config file in tests/docker-test run the following to perform unit tests for httpd:

./build.sh httpd
./test.sh httpd

It's useful to note that the keyword httpd in this example is merely a substring for a test name, this means that if we replaced it with x86_64 or fc23, it would run all unit tests for x86_64 systems or Fedora 23 respectively.