package integration

import (
	"syscall"

	"github.com/opencontainers/runc/libcontainer/configs"
)

var standardEnvironment = []string{
	"HOME=/root",
	"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
	"HOSTNAME=integration",
	"TERM=xterm",
}

const defaultMountFlags = syscall.MS_NOEXEC | syscall.MS_NOSUID | syscall.MS_NODEV

// newTemplateConfig returns a base template for running a container
//
// it uses a network strategy of just setting a loopback interface
// and the default setup for devices
func newTemplateConfig(rootfs string) *configs.Config {
	return &configs.Config{
		Rootfs: rootfs,
		Capabilities: []string{
			"CHOWN",
			"DAC_OVERRIDE",
			"FSETID",
			"FOWNER",
			"MKNOD",
			"NET_RAW",
			"SETGID",
			"SETUID",
			"SETFCAP",
			"SETPCAP",
			"NET_BIND_SERVICE",
			"SYS_CHROOT",
			"KILL",
			"AUDIT_WRITE",
		},
		Namespaces: configs.Namespaces([]configs.Namespace{
			{Type: configs.NEWNS},
			{Type: configs.NEWUTS},
			{Type: configs.NEWIPC},
			{Type: configs.NEWPID},
			{Type: configs.NEWNET},
		}),
		Cgroups: &configs.Cgroup{
			Name:             "test",
			Parent:           "integration",
			MemorySwappiness: -1,
			AllowAllDevices:  false,
			AllowedDevices:   configs.DefaultAllowedDevices,
		},
		MaskPaths: []string{
			"/proc/kcore",
		},
		ReadonlyPaths: []string{
			"/proc/sys", "/proc/sysrq-trigger", "/proc/irq", "/proc/bus",
		},
		Devices:  configs.DefaultAutoCreatedDevices,
		Hostname: "integration",
		Mounts: []*configs.Mount{
			{
				Source:      "proc",
				Destination: "/proc",
				Device:      "proc",
				Flags:       defaultMountFlags,
			},
			{
				Source:      "tmpfs",
				Destination: "/dev",
				Device:      "tmpfs",
				Flags:       syscall.MS_NOSUID | syscall.MS_STRICTATIME,
				Data:        "mode=755",
			},
			{
				Source:      "devpts",
				Destination: "/dev/pts",
				Device:      "devpts",
				Flags:       syscall.MS_NOSUID | syscall.MS_NOEXEC,
				Data:        "newinstance,ptmxmode=0666,mode=0620,gid=5",
			},
			{
				Device:      "tmpfs",
				Source:      "shm",
				Destination: "/dev/shm",
				Data:        "mode=1777,size=65536k",
				Flags:       defaultMountFlags,
			},
			{
				Source:      "mqueue",
				Destination: "/dev/mqueue",
				Device:      "mqueue",
				Flags:       defaultMountFlags,
			},
			{
				Source:      "sysfs",
				Destination: "/sys",
				Device:      "sysfs",
				Flags:       defaultMountFlags | syscall.MS_RDONLY,
			},
		},
		Networks: []*configs.Network{
			{
				Type:    "loopback",
				Address: "127.0.0.1/0",
				Gateway: "localhost",
			},
		},
		Rlimits: []configs.Rlimit{
			{
				Type: syscall.RLIMIT_NOFILE,
				Hard: uint64(1025),
				Soft: uint64(1025),
			},
		},
	}
}
