Standard Docker images contain a file /etc/apt/apt.conf.d/docker-gzip-indexes with
Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";
in it. So c-n-f is broken there.
Standard Docker images contain a file /etc/apt/ apt.conf. d/docker- gzip-indexes with
Acquire: :GzipIndexes "true"; Acquire: :CompressionTyp es::Order: : "gz";
in it. So c-n-f is broken there.