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Kaniko

Build Docker Images with Docker Daemon

First create a kubernetes secret with docker registry credentials

kubectl create secret docker-registry regcred --docker-server=<your-registry-server> --docker-username=<your-name> --docker-password=<your-pword> --docker-email=<your-email>
kubectl create secret docker-registry regcred --docker-server=https://index.docker.io/v1/ --docker-username=kunchalavikram --docker-password=<your-pword> --docker-email=<your-email>

Using the Executor: Various command-line flags

Usage:
  executor [flags]
  executor [command]

Available Commands:
  completion  Generate the autocompletion script for the specified shell
  help        Help about any command
  version     Print the version number of kaniko

Flags:
      --build-arg multi-arg type                  This flag allows you to pass in ARG values at build time. Set it repeatedly for multiple values.
      --cache                                     Use cache when building image
      --cache-copy-layers                         Caches copy layers
      --cache-dir string                          Specify a local directory to use as a cache. (default "/cache")
      --cache-repo string                         Specify a repository to use as a cache, otherwise one will be inferred from the destination provided
      --cache-ttl duration                        Cache timeout in hours. Defaults to two weeks. (default 336h0m0s)
      --cleanup                                   Clean the filesystem at the end
      --compressed-caching                        Compress the cached layers. Decreases build time, but increases memory usage. (default true)
  -c, --context string                            Path to the dockerfile build context. (default "/workspace/")
      --context-sub-path string                   Sub path within the given context.
      --customPlatform string                     Specify the build platform if different from the current host
  -d, --destination multi-arg type                Registry the final image should be pushed to. Set it repeatedly for multiple destinations.
      --digest-file string                        Specify a file to save the digest of the built image to.
  -f, --dockerfile string                         Path to the dockerfile to be built. (default "Dockerfile")
      --force                                     Force building outside of a container
      --force-build-metadata                      Force add metadata layers to build image
      --git gitoptions                            Branch to clone if build context is a git repository (default branch=,single-branch=false,recurse-submodules=false)
  -h, --help                                      help for executor
      --ignore-path multi-arg type                Ignore these paths when taking a snapshot. Set it repeatedly for multiple paths.
      --ignore-var-run                            Ignore /var/run directory when taking image snapshot. Set it to false to preserve /var/run/ in destination image. (default true)
      --image-fs-extract-retry int                Number of retries for image FS extraction
      --image-name-tag-with-digest-file string    Specify a file to save the image name w/ image tag w/ digest of the built image to.
      --image-name-with-digest-file string        Specify a file to save the image name w/ digest of the built image to.
      --insecure                                  Push to insecure registry using plain HTTP
      --insecure-pull                             Pull from insecure registry using plain HTTP
      --insecure-registry multi-arg type          Insecure registry using plain HTTP to push and pull. Set it repeatedly for multiple registries.
      --label multi-arg type                      Set metadata for an image. Set it repeatedly for multiple labels.
      --log-format string                         Log format (text, color, json) (default "color")
      --log-timestamp                             Timestamp in log output
      --no-push                                   Do not push the image to the registry
      --oci-layout-path string                    Path to save the OCI image layout of the built image.
      --push-retry int                            Number of retries for the push operation
      --registry-certificate key-value-arg type   Use the provided certificate for TLS communication with the given registry. Expected format is 'my.registry.url=/path/to/the/server/certificate'.
      --registry-mirror multi-arg type            Registry mirror to use as pull-through cache instead of docker.io. Set it repeatedly for multiple mirrors.
      --reproducible                              Strip timestamps out of the image to make it reproducible
      --single-snapshot                           Take a single snapshot at the end of the build.
      --skip-tls-verify                           Push to insecure registry ignoring TLS verify
      --skip-tls-verify-pull                      Pull from insecure registry ignoring TLS verify
      --skip-tls-verify-registry multi-arg type   Insecure registry ignoring TLS verify to push and pull. Set it repeatedly for multiple registries.
      --skip-unused-stages                        Build only used stages if defined to true. Otherwise it builds by default all stages, even the unnecessaries ones until it reaches the target stage / end of Dockerfile
      --snapshotMode string                       Change the file attributes inspected during snapshotting (default "full")
      --tarPath string                            Path to save the image in as a tarball instead of pushing
      --target string                             Set the target build stage to build
      --use-new-run                               Use the experimental run implementation for detecting changes without requiring file system snapshots.
  -v, --verbosity string                          Log level (trace, debug, info, warn, error, fatal, panic) (default "info")

Use "executor [command] --help" for more information about a command.

Build Log

$ kubectl logs -f kaniko
Enumerating objects: 16, done.
Counting objects: 100% (16/16), done.
Compressing objects: 100% (10/10), done.
Total 16 (delta 6), reused 15 (delta 5), pack-reused 0
←[36mINFO←[0m[0003] Using dockerignore file: /kaniko/buildcontext/.dockerignore
←[36mINFO←[0m[0003] Retrieving image manifest python:3.9.7-alpine3.14
←[36mINFO←[0m[0003] Retrieving image python:3.9.7-alpine3.14 from registry index.docker.io
←[36mINFO←[0m[0006] Built cross stage deps: map[]
←[36mINFO←[0m[0006] Retrieving image manifest python:3.9.7-alpine3.14
←[36mINFO←[0m[0006] Returning cached image manifest
←[36mINFO←[0m[0006] Executing 0 build triggers
←[36mINFO←[0m[0006] Unpacking rootfs as cmd RUN pip install flask requires it.
←[36mINFO←[0m[0012] RUN pip install flask
←[36mINFO←[0m[0012] Taking snapshot of full filesystem...        
←[36mINFO←[0m[0012] cmd: /bin/sh
Collecting flask
  Downloading Flask-2.0.3-py3-none-any.whl (95 kB)
Collecting Werkzeug>=2.0
  Downloading Werkzeug-2.0.3-py3-none-any.whl (289 kB)
Collecting itsdangerous>=2.0
  Downloading itsdangerous-2.1.2-py3-none-any.whl (15 kB)
Collecting click>=7.1.2
  Downloading click-8.0.4-py3-none-any.whl (97 kB)
Collecting Jinja2>=3.0
  Downloading Jinja2-3.1.0-py3-none-any.whl (132 kB)
Collecting MarkupSafe>=2.0
  Downloading MarkupSafe-2.1.1-cp39-cp39-musllinux_1_1_x86_64.whl (29 kB)
Installing collected packages: MarkupSafe, Werkzeug, Jinja2, itsdangerous, click, flask
Successfully installed Jinja2-3.1.0 MarkupSafe-2.1.1 Werkzeug-2.0.3 click-8.0.4 flask-2.0.3 itsdangerous-2.1.2
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
WARNING: You are using pip version 21.2.4; however, version 22.0.4 is available.You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command.
←[36mINFO←[0m[0018] Taking snapshot of full filesystem...
←[36mINFO←[0m[0018] WORKDIR /app
←[36mINFO←[0m[0018] cmd: workdir
←[36mINFO←[0m[0018] Changed working directory to /app
←[36mINFO←[0m[0018] Creating directory /app
←[36mINFO←[0m[0018] Taking snapshot of files...
←[36mINFO←[0m[0018] COPY app.py .
←[36mINFO←[0m[0018] Taking snapshot of files...
←[36mINFO←[0m[0018] ENTRYPOINT ["python", "app.py"]
←[36mINFO←[0m[0018] Pushing image to kunchalavikram/kaniko-demo-image:latest
←[36mINFO←[0m[0026] Pushed index.docker.io/kunchalavikram/kaniko-demo-image@sha256:ba64ddfbec0d94e02dc9e5ab88b8cb64dabc59b55eff25d4ea71725687837ea7

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