[Bug 1977860] Re: Backport 1.18.1 to 18.04, 20.04 and 22.04 LTS

[Lucas Kanashiro]

## Bionic verification

root at golang-118-bionic:~# cat /etc/os-release 
NAME="Ubuntu"
VERSION="18.04.6 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.6 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
# Enable bionic-proposed
root at golang-118-bionic:~# apt install golang-1.18-go -y
[...]
root at golang-118-bionic:~# dpkg -l | grep golang
ii  golang-1.18-go                 1.18.1-1ubuntu1~18.04.3             amd64        Go programming language compiler, linker, compiled stdlib
ii  golang-1.18-src                1.18.1-1ubuntu1~18.04.3             all          Go programming language - source files
root at golang-118-bionic:~# export PATH=/usr/lib/go-1.18/bin:$PATH
root at golang-118-bionic:~# go version
go version go1.18.1 linux/amd64
root at golang-118-bionic:~# cat <<EOF >trivial.go
> package main
> func main() {}
> EOF
root at golang-118-bionic:~# go run trivial.go
root at golang-118-bionic:~# echo $?
0
root at golang-118-bionic:~# cat <<EOF >trivialcgo.go
> package main
> import "C"
> func main() {}
> EOF
root at golang-118-bionic:~# go run trivialcgo.go
root at golang-118-bionic:~# echo $?
0

docker.io from Lunar built fine in this PPA with -proposed enabled:

https://launchpad.net/~lucaskanashiro/+archive/ubuntu/golang-1.18-verification


** Tags removed: verification-needed verification-needed-bionic
** Tags added: verification-done verification-done-bionic

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https://bugs.launchpad.net/bugs/1977860

Title:
  Backport 1.18.1 to 18.04, 20.04 and 22.04 LTS

Status in golang-1.18 package in Ubuntu:
  Fix Released
Status in golang-1.18 source package in Bionic:
  Fix Committed
Status in golang-1.18 source package in Focal:
  Fix Committed
Status in golang-1.18 source package in Jammy:
  Incomplete

Bug description:
  [Rationale for update in 22.04]
  As requested by sil2100, we don’t want upgrade from 20.04 LTS downgrading the Golang 1.18 version. Hence updating this package too to 1.18.3 which includes multile security fixes compared to 1.18.1:

  - go1.18.2 (released 2022-05-10) includes security fixes to the
  syscall package, as well as bug fixes to the compiler, runtime, the go
  command, and the crypto/x509, go/types, net/http/httptest, reflect,
  and sync/atomic packages. See the Go 1.18.2 milestone on our issue
  tracker for details.

  -  go1.18.3 (released 2022-06-01) includes security fixes to the
  crypto/rand, crypto/tls, os/exec, and path/filepath packages, as well
  as bug fixes to the compiler, and the crypto/tls and
  text/template/parse packages. See the Go 1.18.3 milestone on our issue
  tracker for details.

  [Rationale for new package in 20.04]

  As part of our entreprise desktop offering, we need to backport a recent version of ADSys to 20.04 LTS.
  This version depends on a recent Go version for embedding and more (golang 1.18), thus we need to backport Go 1.18 as a new separate binary package, as it’s already the case for current adsys and the backport of 1.16.

  The latest docker.io version in Lunar requires Golang 1.18 to be
  backported to Focal.

  [Rationale for new package in 18.04]

  The latest docker.io version in Lunar requires Golang 1.18 to be
  backported to Bionic.

  [Test Plan]

  A smoke test, like this:

  $ apt install golang-1.16-go
  $ PATH=/usr/lib/go-1.16/bin:$PATH
  $ go version
  < check it's 1.16 >
  $ cat > trivial.go
  package main
  func main() {}
  $ go run trivial.go
  $ cat > trivialcgo.go
  package main
  import "C"
  func main() {}
  $ go run trivialcgo.go

  Then we should verify if docker.io/20.10.21-0ubuntu1 from Lunar builds
  in Focal/Bionic with the golang-1.18 from -proposed. In order to do
  that, edit d/control to b-d on golang-1.18-go instead of golang-go,
  and also add the path containing the new binaries to the $PATH in
  d/rules (export PATH := $(PATH):/usr/lib/go-1.16/bin/). Uploaded it to
  a PPA with -proposed enabled and check if it builds on all
  architectures.

  [Where problems could occur]
   * Package depending on this Go version would not be able to compile.
   * As this is a separate, versionned, new package, no impact on existing ones.
   * FYI, we already built ADSys against this Go version in our ppa: https://launchpad.net/~didrocks/+archive/ubuntu/ppa

  It's a new package so should not impact any existing behavior. I'm not
  at all proposing to update the default version of Go in a stable
  release. FWIW golang-1.18 is already co-installable with other golang
  versions in other releases.

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