Regarding the FS in Mirrord #3421
Description
Bug Description
I may be using the feature wrong or did I miss something.
We have a Microk8s Running in an EC2 and, those pods have general working working Dir /app/.
The application cannot read file mounts in my remote pod. I have tried fine gain control on fs feature, but not being able to fix this yet.
Is the following behavior an intended way of it working or, am I using the configuration wrong.
Testing python script:
`import os
log_dir = '/app/log'
if os.path.exists(log_dir):
print(f"Files in {log_dir}:")
files = os.listdir(log_dir)
for file in files:
print(f" {file}")
else:
print(f"Directory {log_dir} does not exist"`
My remote pod have multiple mounts, I will take /app/log folder as an example here. When My working Directory is set to /app I cannot see the /app/log folder. But When I change the working Directory to /app2 it works.
mirrord container -f mir.json --fs-mode=write -- docker run diffwrk:latest ! mirrord container is currently an unstable feature ✓ ! mirrord container is currently an unstable feature ✓ preparing to launch process ✓ operator not found ✓ agent pod docrp2/mirrord-agent-zym2rnssnj-jqprf created ✓ pod is ready Files in /app/log: gc-post-trade-service-1.log.1 market-data-gateway-1-2025-07-14-03-26-59-1.log.gz matching-engine-1.log gc-data-cache-reader-1.log.0 gc-stream-processor-1.log.1 data-cache-reader-1-2025-07-11-06-58-59-1.log.gz gc-matching-engine-1.log order-manager-2.log gc-custody-service-1.log.3 gc-ws-gateway-1.log.2
mirrord container -f mir.json --fs-mode=write -- docker run samewrk:latest ! mirrord container is currently an unstable feature ✓ ! mirrord container is currently an unstable feature ✓ preparing to launch process ✓ operator not found ✓ agent pod docrp2/mirrord-agent-9vqjfeiusd-qx6pc created ✓ pod is ready Directory /app/log does not exist
Steps to Reproduce
- Try to read a file from remote pod, with same named working directory as the remote pod.
- Try to read a file from remote pod, with different named working directory as the remote pod.
Backtrace
mirrord layer logs
mirrord intproxy logs
mirrord agent logs
mirrord config
{
"target": {
"path": "pod/om-modules-84ddcc784f-jlcrx",
"namespace": "nmspace"
},
"feature": {
"network": {
"incoming": {
"mode": "steal",
"ignore_ports": [30025]
},
"outgoing": true,
"dns": {
"enabled": true
}
},
"env": true
},
"container": {
"cli_extra_args": ["-p", "8080:8080", "-p", "30025:30025"]
},
"agent": {
"namespace": "nmspace"
}
}mirrord CLI version
mirrord 3.149.0
mirrord-agent version
mirrord 3.149.0
mirrord-operator version (if relevant)
No response
plugin kind and version (if relevant)
No response
Your operating system and version
KDE Kubuntu 24.04
Local process
/home/nuwan/.local/bin/mirrord: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=d9cab4a90c099fa1f61e41c2d110a4e6740f057e, not stripped
Local process version
No response
Additional Info
No response