Comment 5 for bug 1773992

Verified. The first dirmngr started by 1.6.1 stayed alive even after 1.6.2 finished executing; the dirmngr started by 1.6.2 was not alive anymore.

+ lxc launch -e ubuntu:bionic lp1773992-bionic
Creating lp1773992-bionic
Starting lp1773992-bionic
+ sleep 5
+ lxc exec lp1773992-bionic -- sh -c 'apt-cache policy apt | grep Inst ; apt-key adv --recv-keys 843938DF228D22F7B3742BC0D94AA3F0EFE21092 < /dev/null ; sleep 2; ps aux'
  Installed: 1.6.1
Executing: /tmp/apt-key-gpghome.UEzrZXm31Q/gpg.1.sh --recv-keys 843938DF228D22F7B3742BC0D94AA3F0EFE21092
[...]
root 326 0.0 0.0 173060 13952 ? Ss 09:39 0:00 dirmngr --daemon --homedir /tmp/apt-key-gpghome.UEzrZXm31Q
root 411 0.0 0.0 37792 3428 ? R+ 09:40 0:00 ps aux
+ lxc exec lp1773992-bionic -- sh -c 'echo deb http://archive.ubuntu.com/ubuntu bionic-proposed main >> /etc/apt/sources.list && apt-get update && apt-get -y install apt/bionic-proposed'
dpkg-preconfigure: unable to re-open stdin: No such file or directory
+ lxc exec lp1773992-bionic -- sh -c 'apt-cache policy apt | grep Inst ; apt-key adv --recv-keys 843938DF228D22F7B3742BC0D94AA3F0EFE21092 < /dev/null ; sleep 2; ps aux'
  Installed: 1.6.2
Executing: /tmp/apt-key-gpghome.EAd3H1TKh1/gpg.1.sh --recv-keys 843938DF228D22F7B3742BC0D94AA3F0EFE21092
gpg: key D94AA3F0EFE21092: 45 signatures not checked due to missing keys
gpg: key D94AA3F0EFE21092: "Ubuntu CD Image Automatic Signing Key (2012) <email address hidden>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 159664 8980 ? Ss 09:39 0:00 /sbin/init
root 51 0.0 0.0 78436 9844 ? Ss 09:39 0:00 /lib/systemd/systemd-journald
root 63 0.0 0.0 33348 3580 ? Ss 09:39 0:00 /lib/systemd/systemd-udevd
systemd+ 151 0.0 0.0 80012 5340 ? Ss 09:39 0:00 /lib/systemd/systemd-networkd
systemd+ 152 0.0 0.0 70608 5332 ? Ss 09:39 0:00 /lib/systemd/systemd-resolved
daemon 189 0.0 0.0 28332 2404 ? Ss 09:39 0:00 /usr/sbin/atd -f
root 191 0.0 0.0 31748 3180 ? Ss 09:39 0:00 /usr/sbin/cron -f
root 192 0.0 0.0 287988 7072 ? Ssl 09:39 0:00 /usr/lib/accountsservice/accounts-daemon
root 194 0.0 0.0 61996 5736 ? Ss 09:39 0:00 /lib/systemd/systemd-logind
syslog 196 0.0 0.0 197636 4336 ? Ssl 09:39 0:00 /usr/sbin/rsyslogd -n
root 197 0.0 0.0 1434880 21332 ? Ssl 09:39 0:00 /usr/lib/snapd/snapd
root 201 0.0 0.0 170864 17152 ? Ssl 09:39 0:00 /usr/bin/python3 /usr/bin/networkd-dispatcher
message+ 202 0.0 0.0 50052 4472 ? Ss 09:39 0:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
root 206 0.0 0.0 288888 6696 ? Ssl 09:39 0:00 /usr/lib/policykit-1/polkitd --no-debug
root 218 0.0 0.0 72296 5840 ? Ss 09:39 0:00 /usr/sbin/sshd -D
root 227 0.0 0.0 16412 2404 console Ss+ 09:39 0:00 /sbin/agetty -o -p -- \u --noclear --keep-baud console 115200,38400,9600 linux
root 326 0.0 0.0 173060 13952 ? Ss 09:39 0:00 dirmngr --daemon --homedir /tmp/apt-key-gpghome.UEzrZXm31Q
root 1445 0.0 0.0 4628 808 ? Ss+ 09:40 0:00 sh -c apt-cache policy apt | grep Inst ; apt-key adv --recv-keys 843938DF228D22F7B3742BC0D94AA3F0EFE21092 < /dev/null ; sleep 2; ps aux
root 1563 0.0 0.0 37792 3252 ? R+ 09:40 0:00 ps aux