Re: Yocto recipe for Tailscale #yocto #golang

From: "Mike Thompson" <mthompson@dustyrobotics.com>
To: yocto@lists.yoctoproject.org
Subject: Re: Yocto recipe for Tailscale #yocto #golang
Date: Tue, 13 Oct 2020 11:51:13 -0700	[thread overview]
Message-ID: <11004.1602615073598026525@lists.yoctoproject.org> (raw)
In-Reply-To: <15104.1600836543637853360@lists.yoctoproject.org>

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A follow up on a Yocto recipe for building a Tailscale package for others who have an interest in this.

Although the final recipe I created appears to successfully build the Tailscale utility and daemon without warnings or errors, the resulting 'tailscaled' daemon crashes when used.

Investigating this issue further I discovered that Tailscale maintains their own GoLang repository ( https://github.com/tailscale/go/tree/build-56db76510f9640d2ad652f206ae6e41c1a5d63ca ) with changes needed to support Tailscale. I suspect, but haven't proven, using the standard Yocto supported versions of GoLang to build Tailscale results in the crashes I see.  Unfortunately, I don't have enough of an understanding of GoLang to determine how to build Tailscale with the unique version of GoLang maintained by the Tailscale folks..

Instead of resolving this build issue, I instead created a Yocto recipe that utilizes the released binaries from Tailscale ( https://pkgs.tailscale.com/stable/#static ) to create a Yocto package.  This isn't ideal as I would much rather build from source, but solves my short term needs.  This alternate recipe to build a Yocto package from binaries is included below.

------------------------------------------------------------------------

tailscale_1.0.5.bb

SUMMARY = "Tailscale client and daemon for Linux from Tailscale pre-built binaries"

HOMEPAGE = "github.com/tailscale/tailscale"

SECTION = "net"

LICENSE = "CLOSED"

COMPATIBLE_HOST = "x86_64.*-linux"

# Archive URL:

#   https://pkgs.tailscale.com/stable/tailscale_1.0.5_amd64.tgz

#

# Archive contents:

#   tailscale_1.0.5_amd64/systemd

#   tailscale_1.0.5_amd64/systemd/tailscaled.service

#   tailscale_1.0.5_amd64/systemd/tailscaled.defaults

#   tailscale_1.0.5_amd64/tailscaled

#   tailscale_1.0.5_amd64/tailscale

#

# Set SRC_URI subdir to ${P} so that files are unpacked into ${S}

SRC_URI = "https://pkgs.tailscale.com/stable/${BPN}_${PV}_amd64.tgz;subdir=${P}"

SRC_URI[md5sum] = "fad1e5317ec567b77c3a0b53b8b976cf"

SRC_URI[sha256sum] = "ecfcda12068d6ecb2be72eba5572ab09406643bcc73c0cd482ae88060720c430"

inherit systemd

FILES_${PN} += "${systemd_unitdir}/*"

do_install() {

install -d ${D}/${bindir}

install -d ${D}/${sbindir}

install ${S}/${PN}_${PV}_amd64/tailscale ${D}/${bindir}/tailscale

install ${S}/${PN}_${PV}_amd64/tailscaled ${D}/${sbindir}/tailscaled

if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then

install -d ${D}${sysconfdir}/default/

install -m 0644 ${S}/${PN}_${PV}_amd64/systemd/tailscaled.defaults ${D}${sysconfdir}/default/tailscaled

install -d ${D}${systemd_unitdir}/system

install -m 0644 ${S}/${PN}_${PV}_amd64/systemd/tailscaled.service ${D}${systemd_unitdir}/system/tailscaled.service

install -d ${D}${sysconfdir}/systemd/system/multi-user.target.wants/

ln -s ${systemd_unitdir}/system/tailscaled.service ${D}${sysconfdir}/systemd/system/multi-user.target.wants/tailscaled.service

fi

}

SYSTEMD_PACKAGES = "${PN}"

SYSTEMD_SERVICE_${PN} = "tailscaled.service"

SYSTEMD_AUTO_ENABLE = "enable"

------------------------------------------------------------------------

Mike Thompson

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