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fst: improve config
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Browse Source 
The config struct more or less "grew" to what it is today. This change moves things around to make more sense and fixes nonsensical comments describing obsolete behaviour.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra
2025-04-13 03:23:28 +09:00
parent c460892cbd
commit 31b7ddd122
21 changed files with 833 additions and 831 deletions
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108
cmd/fpkg/with.go
View File

@@ -16,7 +16,8 @@ func withNixDaemon(
app *appInfo, pathSet *appPathSet, dropShell bool, beforeFail func(),
) {
mustRunAppDropShell(ctx, updateConfig(&fst.Config{
ID: app.ID,
ID: app.ID,
Path: shellPath,
Args: []string{shellPath, "-lc", "rm -f /nix/var/nix/daemon-socket/socket && " +
// start nix-daemon
@@ -29,33 +30,34 @@ func withNixDaemon(
// terminate nix-daemon
" && pkill nix-daemon",
},
Confinement: fst.ConfinementConfig{
AppID: app.AppID,
Username: "fortify",
Inner: path.Join("/data/data", app.ID),
Outer: pathSet.homeDir,
Shell: shellPath,
Sandbox: &fst.SandboxConfig{
Hostname: formatHostname(app.Name) + "-" + action,
Userns: true, // nix sandbox requires userns
Net: net,
Seccomp: seccomp.FilterMultiarch,
Tty: dropShell,
Filesystem: []*fst.FilesystemConfig{
{Src: pathSet.nixPath, Dst: "/nix", Write: true, Must: true},
},
Link: [][2]string{
{app.CurrentSystem, "/run/current-system"},
{"/run/current-system/sw/bin", "/bin"},
{"/run/current-system/sw/bin", "/usr/bin"},
},
Etc: path.Join(pathSet.cacheDir, "etc"),
AutoEtc: true,
Username: "fortify",
Shell: shellPath,
Data: pathSet.homeDir,
Dir: path.Join("/data/data", app.ID),
ExtraPerms: []*fst.ExtraPermConfig{
{Path: dataHome, Execute: true},
{Ensure: true, Path: pathSet.baseDir, Read: true, Write: true, Execute: true},
},
Identity: app.Identity,
Container: &fst.ContainerConfig{
Hostname: formatHostname(app.Name) + "-" + action,
Userns: true, // nix sandbox requires userns
Net: net,
Seccomp: seccomp.FilterMultiarch,
Tty: dropShell,
Filesystem: []*fst.FilesystemConfig{
{Src: pathSet.nixPath, Dst: "/nix", Write: true, Must: true},
},
ExtraPerms: []*fst.ExtraPermConfig{
{Path: dataHome, Execute: true},
{Ensure: true, Path: pathSet.baseDir, Read: true, Write: true, Execute: true},
Link: [][2]string{
{app.CurrentSystem, "/run/current-system"},
{"/run/current-system/sw/bin", "/bin"},
{"/run/current-system/sw/bin", "/usr/bin"},
},
Etc: path.Join(pathSet.cacheDir, "etc"),
AutoEtc: true,
},
}), dropShell, beforeFail)
}
@@ -65,36 +67,38 @@ func withCacheDir(
action string, command []string, workDir string,
app *appInfo, pathSet *appPathSet, dropShell bool, beforeFail func()) {
mustRunAppDropShell(ctx, &fst.Config{
ID: app.ID,
ID: app.ID,
Path: shellPath,
Args: []string{shellPath, "-lc", strings.Join(command, " && ")},
Confinement: fst.ConfinementConfig{
AppID: app.AppID,
Username: "nixos",
Inner: path.Join("/data/data", app.ID, "cache"),
Outer: pathSet.cacheDir, // this also ensures cacheDir via shim
Shell: shellPath,
Sandbox: &fst.SandboxConfig{
Hostname: formatHostname(app.Name) + "-" + action,
Seccomp: seccomp.FilterMultiarch,
Tty: dropShell,
Filesystem: []*fst.FilesystemConfig{
{Src: path.Join(workDir, "nix"), Dst: "/nix", Must: true},
{Src: workDir, Dst: path.Join(fst.Tmp, "bundle"), Must: true},
},
Link: [][2]string{
{app.CurrentSystem, "/run/current-system"},
{"/run/current-system/sw/bin", "/bin"},
{"/run/current-system/sw/bin", "/usr/bin"},
},
Etc: path.Join(workDir, "etc"),
AutoEtc: true,
Username: "nixos",
Shell: shellPath,
Data: pathSet.cacheDir, // this also ensures cacheDir via shim
Dir: path.Join("/data/data", app.ID, "cache"),
ExtraPerms: []*fst.ExtraPermConfig{
{Path: dataHome, Execute: true},
{Ensure: true, Path: pathSet.baseDir, Read: true, Write: true, Execute: true},
{Path: workDir, Execute: true},
},
Identity: app.Identity,
Container: &fst.ContainerConfig{
Hostname: formatHostname(app.Name) + "-" + action,
Seccomp: seccomp.FilterMultiarch,
Tty: dropShell,
Filesystem: []*fst.FilesystemConfig{
{Src: path.Join(workDir, "nix"), Dst: "/nix", Must: true},
{Src: workDir, Dst: path.Join(fst.Tmp, "bundle"), Must: true},
},
ExtraPerms: []*fst.ExtraPermConfig{
{Path: dataHome, Execute: true},
{Ensure: true, Path: pathSet.baseDir, Read: true, Write: true, Execute: true},
{Path: workDir, Execute: true},
Link: [][2]string{
{app.CurrentSystem, "/run/current-system"},
{"/run/current-system/sw/bin", "/bin"},
{"/run/current-system/sw/bin", "/usr/bin"},
},
Etc: path.Join(workDir, "etc"),
AutoEtc: true,
},
}, dropShell, beforeFail)
}