gistfile1.txt

$ docker build .
Sending build context to Docker daemon  95.05MB

...
Step 16/42 : WORKDIR /app
 ---> Using cache
 ---> 6169e33fecef
Step 17/42 : RUN apt-get update
 ---> Running in 4805303d6953
Get:1 http://security.debian.org/debian-security buster/updates InRelease [65.4 kB]
Get:2 https://dl.yarnpkg.com/debian stable InRelease [17.1 kB]
Get:3 http://deb.debian.org/debian buster InRelease [121 kB]
Get:4 https://deb.nodesource.com/node_12.x buster InRelease [4584 B]
Err:1 http://security.debian.org/debian-security buster/updates InRelease
  At least one invalid signature was encountered.
Err:2 https://dl.yarnpkg.com/debian stable InRelease
  At least one invalid signature was encountered.
Get:5 http://deb.debian.org/debian buster-updates InRelease [51.9 kB]
Err:4 https://deb.nodesource.com/node_12.x buster InRelease
  At least one invalid signature was encountered.
Err:3 http://deb.debian.org/debian buster InRelease
  At least one invalid signature was encountered.
Err:5 http://deb.debian.org/debian buster-updates InRelease
  At least one invalid signature was encountered.
Reading package lists...
W: GPG error: http://security.debian.org/debian-security buster/updates InRelease: At least one invalid signature was encountered.
E: The repository 'http://security.debian.org/debian-security buster/updates InRelease' is not signed.
W: GPG error: https://dl.yarnpkg.com/debian stable InRelease: At least one invalid signature was encountered.
E: The repository 'https://dl.yarnpkg.com/debian stable InRelease' is not signed.
W: GPG error: https://deb.nodesource.com/node_12.x buster InRelease: At least one invalid signature was encountered.
E: The repository 'https://deb.nodesource.com/node_12.x buster InRelease' is not signed.
W: GPG error: http://deb.debian.org/debian buster InRelease: At least one invalid signature was encountered.
E: The repository 'http://deb.debian.org/debian buster InRelease' is not signed.
W: GPG error: http://deb.debian.org/debian buster-updates InRelease: At least one invalid signature was encountered.
E: The repository 'http://deb.debian.org/debian buster-updates InRelease' is not signed.



$ docker run -ti --rm 6169e33fecef apt-get update

Get:1 http://security.debian.org/debian-security buster/updates InRelease [65.4 kB]
Get:2 http://deb.debian.org/debian buster InRelease [121 kB]
Get:3 https://deb.nodesource.com/node_12.x buster InRelease [4584 B]
Get:4 https://dl.yarnpkg.com/debian stable InRelease [17.1 kB]
Get:5 http://deb.debian.org/debian buster-updates InRelease [51.9 kB]
Get:6 http://security.debian.org/debian-security buster/updates/main amd64 Packages [208 kB]
Get:7 https://deb.nodesource.com/node_12.x buster/main amd64 Packages [763 B]
Get:8 https://dl.yarnpkg.com/debian stable/main all Packages [9953 B]
Get:9 https://dl.yarnpkg.com/debian stable/main amd64 Packages [9953 B]
Get:10 http://deb.debian.org/debian buster/main amd64 Packages [7905 kB]
Get:11 http://deb.debian.org/debian buster-updates/main amd64 Packages [7868 B]
Fetched 8402 kB in 4s (2118 kB/s)
Reading package lists...