4822fb1e24
In newer kernels, AppArmor will reject attempts to send signals to a container because the signal originated from outside of that AppArmor profile. Correct this by allowing all unconfined signals to be received. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> Signed-off-by: Aleksa Sarai <asarai@suse.de>
50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
// +build linux
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package apparmor // import "github.com/docker/docker/profiles/apparmor"
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// baseTemplate defines the default apparmor profile for containers.
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const baseTemplate = `
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{{range $value := .Imports}}
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{{$value}}
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{{end}}
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profile {{.Name}} flags=(attach_disconnected,mediate_deleted) {
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{{range $value := .InnerImports}}
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{{$value}}
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{{end}}
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network,
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capability,
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file,
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umount,
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{{if ge .Version 208096}}
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{{/* Allow 'docker kill' to actually send signals to container processes. */}}
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signal (receive) peer={{.DaemonProfile}},
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{{/* Allow container processes to send signals amongst themselves. */}}
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signal (send,receive) peer={{.Name}},
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{{end}}
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deny @{PROC}/* w, # deny write for all files directly in /proc (not in a subdir)
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# deny write to files not in /proc/<number>/** or /proc/sys/**
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deny @{PROC}/{[^1-9],[^1-9][^0-9],[^1-9s][^0-9y][^0-9s],[^1-9][^0-9][^0-9][^0-9]*}/** w,
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deny @{PROC}/sys/[^k]** w, # deny /proc/sys except /proc/sys/k* (effectively /proc/sys/kernel)
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deny @{PROC}/sys/kernel/{?,??,[^s][^h][^m]**} w, # deny everything except shm* in /proc/sys/kernel/
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deny @{PROC}/sysrq-trigger rwklx,
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deny @{PROC}/kcore rwklx,
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deny mount,
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deny /sys/[^f]*/** wklx,
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deny /sys/f[^s]*/** wklx,
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deny /sys/fs/[^c]*/** wklx,
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deny /sys/fs/c[^g]*/** wklx,
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deny /sys/fs/cg[^r]*/** wklx,
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deny /sys/firmware/** rwklx,
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deny /sys/kernel/security/** rwklx,
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{{if ge .Version 208095}}
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# suppress ptrace denials when using 'docker ps' or using 'ps' inside a container
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ptrace (trace,read) peer={{.Name}},
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{{end}}
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}
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`
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