Commit Graph

11 Commits

Author SHA1 Message Date
Josh Bleecher Snyder
a5da4ed981 all: gofmt with Go 1.17
This adds "//go:build" lines and tidies up existing "// +build" lines.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-08-05 15:54:00 -07:00
Brad Fitzpatrick
03311bb0d6 hostinfo: add hostinfo package, move stuff out of controlclient
And make it cheaper, so other parts of the code can check the
environment.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-06-17 14:27:01 -07:00
Denton Gentry
857bc4a752 hostinfo: capitalization of AWS
Missed one comment from https://github.com/tailscale/tailscale/pull/1868
should be isAWSLambda not isAwsLambda

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-06-14 15:26:57 -07:00
Denton Gentry
4b71291cdb hostinfo: detect when running in Azure App Service.
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-06-14 13:14:17 -07:00
Denton Gentry
3ab587abe7 hostinfo: detect Heroku Dyno.
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-06-14 13:14:17 -07:00
Denton Gentry
3c1a73d370 hostinfo: detect AWS Lambda as a container.
AWS Lambda uses Docker containers but does not
have the string "docker" in its /proc/1/cgroup.
Infer AWS Lambda via the environment variables
it sets.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-06-14 13:14:17 -07:00
Denton Gentry
224e60cef2 hostifo: update LXC, add Cloud Run.
Recent LXC support no longer has "lxc" in /proc/1/cgroup:
    # cat /proc/1/cgroup
    12:freezer:/
    11:rdma:/
    10:cpuset:/
    9:pids:/
    8:blkio:/
    7:devices:/
    6:perf_event:/
    5:net_cls,net_prio:/
    4:memory:/
    3:hugetlb:/
    2:cpu,cpuacct:/
    1:name=systemd:/init.scope
    0::/init.scope

Look for fuse.lxcfs in /proc.mounts in addition:
    # grep lxc /proc/mounts
    lxcfs /proc/cpuinfo fuse.lxcfs ...
    lxcfs /proc/diskstats fuse.lxcfs ...
    lxcfs /proc/loadavg fuse.lxcfs ...
    lxcfs /proc/meminfo fuse.lxcfs ...
    lxcfs /proc/stat fuse.lxcfs ...
    lxcfs /proc/swaps fuse.lxcfs ...
    lxcfs /proc/uptime fuse.lxcfs ...
    lxcfs /sys/devices/system/cpu/online fuse.lxcfs ...

Add Knative detection by looking for the environment variables
which are part of its container contract.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-04-06 17:21:16 -07:00
Brad Fitzpatrick
ef15096a7d control/controlclient, version/distro: detect NixOS explicitly
The fallthrough happened to work in controlclient already due to the
/etc/os-release PRETTY_NAME default, but make it explicit so it
doesn't look like an accident.

Also add it to version/distro, even though nothing needs it yet.
2020-12-21 21:03:04 -08:00
Brad Fitzpatrick
5d8b88be88 control/controlclient, version/distro, wgengine: recognize OpenWrt
And help out with missing packages.

Thanks to @willangley for tips.

Updates #724
2020-09-22 10:28:40 -07:00
Brad Fitzpatrick
931bcd44cb control/controlclient: report Synology "distro" + its version to control 2020-09-15 08:32:06 -07:00
Brad Fitzpatrick
cd21ba0a71 tailcfg, control/controlclient: add GoArch, populate OSVersion on Linux 2020-07-27 21:14:28 -07:00