Can't redirect the output of go run to a file
Metadata
Current evaluation
go run output redirection produces empty file in rockcraft build environment; user suspects snap confinement. 650 days old, zero comments, no labels, no maintainer response. Go plugin since reworked and stabilized in craft-parts.
Suggested action: needs triage
Reason: No maintainer has ever responded, labelled, or assigned this issue (0 comments, no labels, 650 days old). The go plugin has been significantly reworked in craft-parts (go-use plugin, backstage integration) and the experimental flag was removed in #1194, but there is no concrete evidence the specific go-run-redirect behavior is fixed. A maintainer needs to assess whether this is still reproducible with the current go plugin or whether it is a Go toolchain/snap-confinement issue outside rockcraft's scope.
Impact:
25
Quick Win:
15.0
Staleness:
85
Complexity:
40
Confidence:
50
Support Request:
25
Issue body
### Bug Description
When running in the override-build step, the output of `go run` is not being redirected to a file as expected. In my override-build step I am using a go package to do some formatting on a file.
As I was typing out this bug report, I realised that I think this is happening because of snap confinement. It feels a bit frustrating to face snap confinement issues while in a build environment.
### To Reproduce
Use the rockcraft.yaml below and put an `exit 1` at the start of override-build and run `rockcraft pack --debug`.
Then try the following:
- go run github.com/openfga/cli/cmd/fga@latest model -h
- go run github.com/openfga/cli/cmd/fga@latest model -h > test-file
- ls -lah test-file
- go install github.com/openfga/cli/cmd/fga@latest
- /root/go/bin/fga model -h > test-file
- ls -lah test-file
On my machine:
```
# go run github.com/openfga/cli/cmd/fga@latest model -h > test-file
# ls -lah test-file
-rw-r--r-- 1 root root 0 Nov 19 12:31 test-file
# /root/go/bin/fga -h > test-file
# ls -lah test-file
-rw-r--r-- 1 root root 1.5K Nov 19 12:35 test-file
```
As you can see the first attempt results in an empty file (maybe because of snap confinement?) while the second attempt works.
### Environment
```
$ lxc version
Client version: 6.1
Server version: 6.1
```
### rockcraft.yaml
```yaml
name: jimm
base: ubuntu@22.04
version: '0.1'
summary: Juju Intelligent Model Manager provides a convient way to manage all of your models!
description: |
JIMM is a Juju controller, used in conjunction with the JaaS dashboard to provide a seamless way
to manage models, regardless of where their controllers reside or what cloud they may be running on.
license: GPL-3.0
platforms:
amd64:
parts:
ca-certs:
plugin: nil
overlay-packages: [ca-certificates]
builder:
plugin: go # https://canonical-craft-parts--694.com.readthedocs.build/en/694/common/craft-parts/reference/plugins/go_plugin.html
after:
- ca-certs
source: .
source-type: local
build-snaps:
- go/1.23/stable
build-packages:
- git
- make
build-environment:
- GOOS: linux
override-build: |
set -ex
mkdir -p $CRAFT_PART_INSTALL/usr/local/bin
make build/server
cp ./jimmsrv $CRAFT_PART_INSTALL/usr/local/bin
# The location of SQL files isn't configurable right now, as such we just
# place it in bin
cp -r ./internal/dbmodel/sql $CRAFT_PART_INSTALL/usr/local/bin/sql
# Convert the OpenFGA auth model to JSON and place a copy in the ROCK
# Used by the charm to apply to the OpenFGA server, not by the container itself
mkdir -p $CRAFT_PART_INSTALL/root/openfga/
go install github.com/openfga/cli/cmd/fga@latest
go run github.com/openfga/cli/cmd/fga@latest model transform --file ./openfga/authorisation_model.fga --output-format json > $CRAFT_PART_INSTALL/root/openfga/authorisation_model.json
exit 1
```
### Relevant log output
```shell
None
```
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| qwen/qwen3.8-27b |
Impact:
25
Quick Win:
15.0
Staleness:
85
Complexity:
40
Confidence:
50
Support Request:
25
|
needs triage | go run output redirection produces empty file in rockcraft build environment; user suspects snap confinement. 650 days old, zero comments, no labels, no maintainer response. Go plugin since reworked and stabilized in craft-parts. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
92
Complexity:
40
Confidence:
85
Support Request:
35
|
close stale | Report of go run output redirection failing in Rockcraft build environment, producing empty files. Author suspects snap confinement. Untriaged, inactive for 610 days. | |
| qwen3.6-35b-a3b-mtp-q6 |
Staleness:
95
Complexity:
45
Confidence:
85
Support Request:
30
|
close stale | User reports go run output redirection fails in rockcraft build environment, producing empty files. Suspects snap confinement. Inactive for 595 days with no maintainer response. | |
| qwen3.6-35b-a3b-mtp-q6 |
Staleness:
95
Complexity:
50
Confidence:
85
Support Request:
20
|
close stale | User reports `go run` output redirection fails in `rockcraft` override-build, suspecting snap confinement. Issue is 592 days old with no maintainer response. | |
| qwen3.6-35b-a3b-mtp-q6 |
Staleness:
88
Complexity:
40
Confidence:
65
Support Request:
55
|
close stale | go run output redirection fails in Rockcraft's override-build step, likely due to snap confinement. Open with zero comments and 573 days of inactivity; requires triage and investigation. |
Update history
No update history recorded yet.
Related work
-
Related To:
canonical/rockcraft#1194
(confidence 60%)
Disabled experimental flags for go plugin, indicating the go plugin was stabilized and reworked after this issue was filed
Related issues
No related issues found above the similarity threshold.