> del Vagrantfile
>vagrant init --template Vagrantfile.provision.bash.erb
>dir
>vagrant up "vg-debian-04"
>vagrant destroy -f "vg-debian-04"
>vagrant global-status
>del Vagrantfile
>dir
vagrant up vg-debian-03
cd /vagrant/dockerfiles/multi/
#docker build --no-cache
#force rebuilding of layers already available,force the execution of each step/instruction in the Dockerfile
sudo docker build -t devopscube/node-app:1.0-nocache --no-cache -f Dockerfile.single .
sudo docker build -t devopscube/node-app:1.0-cache -f Dockerfile.single .
$ sudo docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
devopscube/node-app 1.0-cache 8dc5fd7228bd About a minute ago 910MB
devopscube/node-app 1.0-nocache 8dc5fd7228bd About a minute ago 910MB
vagrant up vg-debian-03
cd /vagrant/dockerfiles/multi/
sudo docker build -t devopscube/node-app-multi:1.0-alpine --no-cache -f Dockerfile.multi.alpine .
sudo docker build -t devopscube/node-app-multi:1.0-distroless --no-cache -f Dockerfile.multi.distroless .
sudo docker build -t devopscube/node-app-single:1.0 --no-cache -f Dockerfile.single .
sudo docker build -t devopscube/node-app-multi:1.0-debian-bullseye-slim --no-cache -f Dockerfile.multi.debian .
$ sudo docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
devopscube/node-app-single 1.0 e8b38386a0dc 2 minutes ago 910MB
devopscube/node-app-multi 1.0-debian-bullseye-slim e4a8a36e1480 21 seconds ago 245MB
devopscube/node-app-multi 1.0-alpine ad41c10f6698 4 minutes ago 171MB
devopscube/node-app-multi 1.0-distroless e1b409353121 3 minutes ago 118MB
$ sudo docker history --human --format "{{.ID}} {{.CreatedBy}}: {{.Size}}" devopscube/node-app-single:1.0
e8b38386a0dc /bin/sh -c #(nop) CMD ["node" "index.js"]: 0B
11c8ef8378db /bin/sh -c #(nop) EXPOSE 3000: 0B
d6c533204e75 /bin/sh -c npm install: 5.03MB
8b7a6b2be79d /bin/sh -c #(nop) COPY dir:9301d0637515751ac…: 1.4kB
842962c4b3a7 /bin/sh -c #(nop) CMD ["node"]: 0B
<missing> /bin/sh -c #(nop) ENTRYPOINT ["docker-entry…: 0B
<missing> /bin/sh -c #(nop) COPY file:4d192565a7220e13…: 388B
<missing> /bin/sh -c set -ex && for key in 6A010…: 7.59MB
<missing> /bin/sh -c #(nop) ENV YARN_VERSION=1.22.15: 0B
<missing> /bin/sh -c ARCH= && dpkgArch="$(dpkg --print…: 92.9MB
<missing> /bin/sh -c #(nop) ENV NODE_VERSION=16.13.2: 0B
<missing> /bin/sh -c groupadd --gid 1000 node && use…: 334kB
<missing> /bin/sh -c set -ex; apt-get update; apt-ge…: 510MB
<missing> /bin/sh -c apt-get update && apt-get install…: 146MB
<missing> /bin/sh -c set -ex; if ! command -v gpg > /…: 17.5MB
<missing> /bin/sh -c set -eux; apt-get update; apt-g…: 16.5MB
<missing> /bin/sh -c #(nop) CMD ["bash"]: 0B
<missing> /bin/sh -c #(nop) ADD file:be998d04a8927e9c4…: 114MB
$ sudo docker history --human --format "{{.ID}} {{.CreatedBy}}: {{.Size}}" devopscube/node-app-multi:1.0-alpine
ad41c10f6698 /bin/sh -c #(nop) CMD ["index.js"]: 0B
da5b41b925fb /bin/sh -c #(nop) EXPOSE 8080: 0B
6bad03b453c5 /bin/sh -c #(nop) COPY dir:fda48d9f47f743506…: 1.76MB
025c3cbb849f /bin/sh -c #(nop) CMD ["node"]: 0B
<missing> /bin/sh -c #(nop) ENTRYPOINT ["docker-entry…: 0B
<missing> /bin/sh -c #(nop) COPY file:4d192565a7220e13…: 388B
<missing> /bin/sh -c apk add --no-cache --virtual .bui…: 7.76MB
<missing> /bin/sh -c #(nop) ENV YARN_VERSION=1.22.17: 0B
<missing> /bin/sh -c addgroup -g 1000 node && addu…: 156MB
<missing> /bin/sh -c #(nop) ENV NODE_VERSION=17.4.0: 0B
<missing> /bin/sh -c #(nop) CMD ["/bin/sh"]: 0B
<missing> /bin/sh -c #(nop) ADD file:9233f6f2237d79659…: 5.59MB
$ sudo docker history --human --format "{{.ID}} {{.CreatedBy}}: {{.Size}}" devopscube/node-app-multi:1.0-distroless
e1b409353121 /bin/sh -c #(nop) CMD ["index.js"]: 0B
a3a60bcb1b40 /bin/sh -c #(nop) EXPOSE 3000: 0B
4b3536de4c9d /bin/sh -c #(nop) COPY dir:fda48d9f47f743506…: 1.76MB
fa463f9d1f7c bazel build ...: 93.3MB
<missing> bazel build ...: 2.34MB
<missing> bazel build ...: 17.9MB
<missing> bazel build ...: 2.36MB
$ sudo docker history --human --format "{{.ID}} {{.CreatedBy}}: {{.Size}}" devopscube/node-app-multi:1.0-debian-bullseye-slim
e4a8a36e1480 /bin/sh -c #(nop) CMD ["index.js"]: 0B
0cd8d3500cb5 /bin/sh -c #(nop) EXPOSE 8080: 0B
9e9b9942f574 /bin/sh -c #(nop) COPY dir:fda48d9f47f743506…: 1.76MB
41bfb961e3ef /bin/sh -c #(nop) CMD ["node"]: 0B
<missing> /bin/sh -c #(nop) ENTRYPOINT ["docker-entry…: 0B
<missing> /bin/sh -c #(nop) COPY file:4d192565a7220e13…: 388B
<missing> /bin/sh -c set -ex && savedAptMark="$(apt-…: 9.48MB
<missing> /bin/sh -c #(nop) ENV YARN_VERSION=1.22.17: 0B
<missing> /bin/sh -c ARCH= && dpkgArch="$(dpkg --print…: 153MB
<missing> /bin/sh -c #(nop) ENV NODE_VERSION=17.4.0: 0B
<missing> /bin/sh -c groupadd --gid 1000 node && use…: 333kB
<missing> /bin/sh -c #(nop) CMD ["bash"]: 0B
<missing> /bin/sh -c #(nop) ADD file:09675d11695f65c55…: 80.4MB
https://github.com/wagoodman/dive
sudo dive devopscube/node-app-single:1.0
Total Image size: 910 MB
Potential wasted space: 10 MB
Image efficiency score: 99 %
sudo dive devopscube/node-app-multi:1.0-distroless
Total Image size: 118 MB
Potential wasted space: 0 B
Image efficiency score: 100 %
sudo dive devopscube/node-app-multi:1.0-alpine
Total Image size: 171 MB
Potential wasted space: 704 kB
Image efficiency score: 99 %
sudo dive devopscube/node-app-multi:1.0-debian-bullseye-slim
Total Image size: 245 MB
Potential wasted space: 6.0 MB
Image efficiency score: 98 %
https://github.com/docker-slim/docker-slim
curl -L -o ds.tar.gz https://downloads.dockerslim.com/releases/1.37.3/dist_linux.tar.gz
tar -xvf ds.tar.gz
mv dist_linux/docker-slim* /usr/local/bin
docker-slim
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