Image contents

build/rootfs/ after make release:

/init                                static, 40 KB
/rel/erts-17.1/bin/beam.smp          static, 9.9 MB, JIT, OpenSSL 3.5 + zlib + zstd + crypto/asn1 NIFs linked in
/rel/erts-17.1/bin/erl_child_setup   static, 59 KB
/rel/lib/asn1-5.5.2/ebin
/rel/lib/compiler-10.0.6/ebin
/rel/lib/crypto-5.10/ebin
/rel/lib/elixir-1.20.4/ebin
/rel/lib/iex-1.20.4/ebin
/rel/lib/kernel-11.0.4/ebin
/rel/lib/logger-1.20.4/ebin
/rel/lib/public_key-1.21.7/ebin
/rel/lib/sasl-4.4/ebin
/rel/lib/ssl-11.7.7/ebin
/rel/lib/stdlib-8.1/ebin
/rel/lib/uniapp-0.1.0/ebin
/rel/releases/0.1.0/{start,start_clean}.{boot,script}, sys.config, vm.args, uniapp.rel, consolidated/
/rel/releases/RELEASES, start_erl.data
/etc/ssl/cacert.pem                  Alpine CA bundle, 230 KB
/dev /proc /sys /tmp                 empty mount points

Written by /init at boot: /etc/inetrc, /etc/resolv.conf, /etc/hosts.

Not present, by construction: sh, erl, erlexec, epmd, inet_gethost, heart, erl_call, escript, run_erl, to_erl, any .so, any dynamic loader, any Erlang source, include or documentation file. scripts/assemble-rootfs.sh fails the build if any ELF other than the three listed is found.

Sizes

OTP applications excluded from the build

Configured out with --without-* in the Dockerfile and therefore absent from both the cross and the native OTP: wx, odbc, debugger, observer, et, megaco, jinterface, cdv, dialyzer, diameter, eldap, erl_docgen, ftp, mnesia, os_mon, reltool, snmp, tftp, common_test, edoc, ssh, runtime_tools, syntax_tools. tools, eunit, inets, xmerl, parsetools and erl_interface are built (Elixir needs some of them at compile time) but only enter the image if your release lists them.