# make -f Makefile.docker
cd gentoo-glibc; docker build -t dockerrepo.matrix.dev/gentoo-glibc:latest-amd64 . && touch buildtime && docker push dockerrepo.matrix.dev/gentoo-glibc:latest-amd64 && touch pushtime
Sending build context to Docker daemon  21.12MB
Step 1/2 : FROM dockerrepo.matrix.dev/gentoo-base:latest
 ---> 22fe37b24ebe
Step 2/2 : ADD gentoo-glibc.tar.gz /
 ---> 4e800333acbd
Successfully built 4e800333acbd
Successfully tagged dockerrepo.matrix.dev/gentoo-glibc:latest-amd64
The push refers to repository [dockerrepo.matrix.dev/gentoo-glibc]
22bac475857f: Pushed
636634f1308a: Layer already exists
[...]
Step 2/8 : FROM dockerrepo.matrix.dev/gentoo-glibc:latest-amd64
[...]
Step 8/8 : ADD gentoo-gcc.tar.gz / ---> b89e1b4ab2ba
Successfully built b89e1b4ab2ba
Successfully tagged dockerrepo.matrix.dev/gentoo-gcc:latest-amd64
The push refers to repository [dockerrepo.matrix.dev/gentoo-gcc]
794c152bde4c: Pushed
[...]
22bac475857f: Mounted from gentoo-bind
636634f1308a: Layer already exists
latest-amd64: digest: sha256:667609580127bd14d287204eaa00f4844d9a5fd2847118a6025e386969fc88d5 size: 1996
cd gentoo-java; docker build -t dockerrepo.matrix.dev/gentoo-java:latest-amd64 . && touch buildtime && docker push dockerrepo.matrix.dev/gentoo-java:latest-amd64 && touch pushtime
Sending build context to Docker daemon  66.12MB
Step 1/6 : FROM dockerrepo.matrix.dev/gentoo-glibc:latest-amd64
 ---> 4e800333acbd
Step 2/6 : COPY --from=dockerrepo.matrix.dev/gentoo-zlib:latest-amd64 /lib64/* /lib64/
 ---> aaf3f557c027
Step 3/6 : COPY --from=dockerrepo.matrix.dev/gentoo-gcc:latest-amd64 /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/lib* /lib64/
 ---> 6f7d7264921c
Step 4/6 : ADD gentoo-java.tar.gz /
 ---> afb2d5612109
Step 5/6 : ENV JAVA_HOME /opt/icedtea-bin-3.16.0
[...]
441dec54d0dd: Pushed
22bac475857f: Mounted from gentoo-glibc
636634f1308a: Layer already exists
latest-amd64: digest: sha256:965aeac1b1cd78cde11aec58d6077f69190954ff59f5064900ae12285e170836 size: 1371