buildah-build(1) General Commands Manual buildah-build(1) (NAME) buildah-build - Containerfile Dockerfile (SYNOPSIS) buildah build [] [] buildah bud [] [] (DESCRIPTION) Containerfile Dockerfile (build context) . Containerfile Dockerfile . Containerfile 'Containerfile' 'Dockerfile' . URL http(s) () git Containerfile . Buildah Containerfile . Containerfile ".in" cpp(1) . Containerfile #include CPP . Containerfile.in cpp -E . ( # ) () Containerfile . URL URL . URL Containerfile . Git URL . ( ) git URL myrepo.git#mybranch:subdir myrepo.git#mycommit:subdir myrepo.git#:subdir . (OPTIONS) --add-host=[] IP ( host:ip) /etc/hosts . hostname:ip . --add-host . --no-hosts . IP host-gateway . IP . IP Buildah host- gateway Buildah . IP host_containers_internal_ip containers.conf . host-gateway Buildah host.containers.internal host.docker.internal /etc/hosts . --no-hosts host_containers_internal_ip="none" containers.conf . host-gateway Buildah IP Buildah /etc/hosts . Buildah podman machine ( ) Buildah /etc/hosts IP DNS gvproxy . Buildah /etc/hosts /etc/hosts . base_hosts_file containers.conf . --all-platforms --platform . scratch scratch . --annotation annotation[=value] (annotation) ( annotation=value) . . annotation = value annotation . : Docker Docker . --arch="ARCH" (ARCH) (pull) ( ) . (: arm arm64 386 amd64 ppc64le s390x) --authfile path . ${XDG_RUNTIME_DIR}/containers/auth.json . containers-auth.json(5) . buildah login . $HOME/.docker/config.json docker login . : REGISTRY_AUTH_FILE . export REGISTRY_AUTH_FILE=path --build-arg arg=value Containerfiles . Containerfile (BUILD TIME VARIABLES) <#build-time-variables> . --build-arg-file path arg=value . argfile.conf . () # . arg=value --build-arg . --build-arg-file --build-arg . --build-arg-file --build-arg . . --build-arg --build-arg- file . --build-context name=value . COPY . : * - --build-context project2=../path/to/project2/src * HTTP tarball - --build-context src=https://example.org/releases/src.tar * - container-image:// --build-context alpine=container-image://alpine:3.15 ( docker:// docker-image:// ) Containerfile <> . : FROM [name] COPY --from=[name] ... RUN --mount=from=[name] [name] : o --build- context [name]=.. o AS [name] Containerfile o [name] --cache-from . Buildah (pull) . Buildah (cache hits) . --cache-to . # populate a cache and also consult it buildah build -t test --layers --cache-to registry/myrepo/cache --cache-from registry/myrepo/cache . : --cache-from --layers . : --cache-from Buildah --cache-from Docker BuildKit . Buildah Docker BuildKit . Buildah kaniko . Buildah . --cache-to . Buildah (push) . : --cache-from . # populate a cache and also consult it buildah build -t test --layers --cache-to registry/myrepo/cache --cache-from registry/myrepo/cache . : --cache-to --layers . : --cache-to Buildah --cache-to Docker BuildKit . Buildah Docker BuildKit . Buildah kaniko . Buildah . --cache-ttl duration duration . --cache-ttl=1h Buildah . : --cache-ttl=0 --no-cache . --cap-add=CAP_xxx RUN (capability) . . --cap-drop=CAP_xxx RUN . CAP_CHOWN CAP_DAC_OVERRIDE CAP_FOWNER CAP_FSETID CAP_KILL CAP_NET_BIND_SERVICE CAP_SETFCAP CAP_SETGID CAP_SETPCAP CAP_SETUID . containers.conf(5) . --cap-add --cap-drop . --cert-dir path path (*.crt *.cert *.key) HTTPS ADD . /etc/containers/certs.d . --cgroup-parent="" cgroups cgroup RUN . cgroups init . cgroup . --cgroupns how cgroup (cgroup namespaces) RUN . "" ( ) "private" cgroup "host" cgroup buildah . --compat-volumes VOLUME ( ) ADD COPY . RUN (revert) . . --compress (CLI) . Buildah (context directory) . Buildah . --compression-format format . : gzip zstd zstd:chunked. zstd:chunked zstd . compression_format containers.conf . --cache-to ( dir: oci: oci-archive: ) . ( ) buildah push . --compression-level level . zstd - ( ) gzip - ( ) . compression_level containers.conf . --cpp-flag="" cpp(1). Containerfile ".in" cpp(1) . cpp . : BUILDAH_CPPFLAGS CPPFLAGS ( export BUILDAH_CPPFLAGS="-DDEBUG"). --cpu-period=0 CPU (CFS) . (quota) . . (non-root) . : https://github.com/containers/podman/blob/main/troubleshooting.md#26-running- containers-with-cpu-limits-fails-with-a-permissions-error --cpu-quota=0 (quota) CFS ( ) . . () . (non-root) . : https://github.com/containers/podman/blob/main/troubleshooting.md#26-running- containers-with-cpu-limits-fails-with-a-permissions-error --cpu-shares, -c=0 ( ) . . --cpu-shares . . . . cpu-share cpu-share . . cpu-share . . . . . . . {C0} -c=512 {C1} -c=1024 : PID container CPU CPU share 100 {C0} 0 100% of CPU0 101 {C1} 1 100% of CPU1 102 {C1} 2 100% of CPU2 --cpuset-cpus="" (0-3, 0,1) --cpuset-mems="" (MEMs) (0-3, 0,1). NUMA . (0-3) --cpuset-mems=0,1 . --created-annotation (annotation) ( : --annotation) () "org.opencontainers.image.created" --source-date-epoch --timestamp ( ) . false . : . --creds creds [username[:password]] . . (echo) . --cw options (confidential workload) (TEE) krun ( crun libkrun krun ). (rootfs) krun . options key=value . (keys) : attestation_url: / (key broker / attestation server). . krun . passphrase . cpus: (vCPU) . . firmware_library: libkrunfw-sev. buildah . memory: . . passphrase: . attestation_url . attestation_url passphrase . slop: (..%) ( KB MB) . buildah . type: (TEE) . "SEV" ( AMD - ) "SNP" ( AMD - ). "SNP" . workload_id: . . --decryption-key key[:passphrase] [key[:passphrase]] . / . . . --device=device RUN . permissions r w m mknod(2) . : --device=/dev/sdc:/dev/xvdc:rwm. : host-device (symbolic link) . (major and minor numbers) . (CDI) (https://github.com/cncf-tags/container- device-interface). : (rootless) . crun(1) --annotation run.oci.keep_original_groups=1 . --disable-compression -D . (push) . --disable- compression=false . --disable-content-trust Buildah . (NOOP) . --dns=[] DNS . --dns --network=none . DNS . DNS ( 127.0.0.1). --dns . none /etc/resolv.conf Buildah . /etc/resolv.conf . --dns-option=[] DNS . --dns-option --network=none . --dns-search=[] DNS . --dns-search --network=none . --env env[=value] ( env=value) . . = *value* env . env ENV Containerfile . --unsetenv . --file -f Containerfile Containerfile URL http https. Containerfile FROM . Containerfile (context directory) . -f - Containerfile (stdin) . --force-compression . --compression-format compression_format containers.conf true false . --force-rm bool-value ( false ). --format . oci ( OCI image-spec v1.0 ) docker ( 2 2 ) . : BUILDAH_FORMAT . export BUILDAH_FORMAT=docker --from FROM Containerfile . FROM Containerfile . --group-add=group | keep-groups . o keep-groups Buildah (supplementary group access) . . (rootless) OCI . OCI crun . : keep-groups . --help -h (usage statement) --hooks-dir path *.json (hook) buildah . JSON oci- hooks(5) . Buildah 1.0.0 0.1.0 0.1.0 . ( oci-hooks(5) ). (annotation conditions) buildah OCI . (bind-mount conditions) --volume . buildah ( /dev/shm) . --hooks-dir (root) Buildah /usr/share/containers/oci/hooks.d /etc/containers/oci/hooks.d . --hooks-dir . --http-proxy=true buildah . --http- proxy false . http_proxy https_proxy ftp_proxy no_proxy . --identity-label bool-value io.buildah.version buildah ( true --timestamp --source-date-epoch ). --ignorefile file .containerignore (.dockerignore) . --iidfile ImageIDfile . --platform . --iidfile-raw ImageIDfile ( sha256:) . --platform . --raw-iidfile . --inherit-annotations bool-value (annotations) ( true ). false --created- annotation . --inherit-labels bool-value (labels) ( true ). --ipc how IPC RUN . "" ( ) "container" IPC "host" IPC buildah IPC . --isolation type RUN . oci ( OCI ) rootless ( OCI --no-new-keyring create UTS IPC PID (mount) ) chroot ( chroot(1) (cgroup) IPC PID mount UTS ) . : BUILDAH_ISOLATION . export BUILDAH_ISOLATION=oci --jobs N N . 1 stdin /dev/null . 0 . --label label[=value] label ( label=value) . . label = value label . LABEL io.containers.capabilities=CAP1,CAP2,CAP3 Containerfile (capabilities) . Podman . . . --layer-label label[=value] label ( label=value) --layers true . . label = value label . --layers bool-value ( false ). : BUILDAH_LAYERS . export BUILDAH_LAYERS=true --logfile filename . --logsplit bool-value --logfile --platform ${logfile}_${platform-os}_${platform-arch} . --manifest listName . . . listName localhost . --memory, -m="" (: [] = b k m g ) . swap -m RAM . 0 ( -m) . (page size) ( ). --memory-swap="LIMIT" swap. -m (--memory) . LIMIT swap -m (--memory) . LIMIT --memory . LIMIT [] . b () k () m () g () . b . swap LIMIT -1 . --metadata-file MetadataFile . --platform . --mount mount-instruction RUN Containerfile . : buildah build --mount type=secret,id=mysecret ... Containerfile : RUN cat /run/secrets/mysecret : RUN --mount=type=secret,id=mysecret cat /run/secrets/mysecret --network, --net=mode RUN . mode : o none: . --dns --dns-option --dns-search o host: . : host D-Bus o ns:path: o private: () o : --network mynet mynet. (rootful) . o pasta[:OPTIONS,...]: pasta(1) (user-mode). (rootless) . IPv4 IPv6 (pod interface) . ( init ) . IP . pasta(1) . pasta(1) --config-net --no-map-gw () . --map-gw pasta ( pasta(1) ). -t none -u none . -T none -U none . : o pasta:--map-gw: . o pasta:--mtu,1500: MTU tap . o pasta:--ipv4-only,-a,10.0.2.0,-n,24,-g,10.0.2.2,--dns- forward,10.0.2.3,-m,1500,--no-ndp,--no-dhcpv6,--no-dhcp IPv6 10.0.2.0/24 tap0 10.0.2.2 DNS 10.0.2.3 MTU NDP DHCPv6 DHCP. o pasta:-I,tap0,--ipv4-only,-a,10.0.2.0,-n,24,-g,10.0.2.2,--dns- forward,10.0.2.3,--no-ndp,--no-dhcpv6,--no-dhcp MTU o pasta:-t,auto,-u,auto,-T,auto,-U,auto: o pasta:-T,5201: TCP 5201 loopback tap --no-cache . . --no-hostname /etc/hostname RUN . Buildah /etc/hostname . --no- hostname /etc/hostname ( ) . --no-hosts /etc/hosts RUN . Buildah /etc/hosts IP . --no-hosts /etc/hosts . --add-host . --omit-history bool-value ( false). --omit-history History History . --os="OS" . --os-feature feature (feature) . scratch ( ) . . feature - feature . --os-version version (version) . scratch ( ) . . --output, -o="" (: type=local,dest=path) --output ( -o) . --output = (key=value) . (keys) : dest: . - . type: . . type : local: . tar: (.tar). --output ( **dest**) ( --output some-path --output -) - (type) tar local . (Timestamps) --timestamp --source-date-epoch ( ) . --tag containers-transports(5) . --pid how PID RUN . "" ( ) "private" PID "host" PID buildah PID . --platform="OS/ARCH[/VARIANT]" OS/ARCH ( ) ( linux/arm linux/arm64 linux/amd64). --platform . --manifest --tag . OS/ARCH Go . ARCH arch . $GOOS $GOARCH https://golang.org/doc/install/source#environment go tool dist list . buildah build (non-native) . RUN qemu-user-static . : . : --platform --arch --os --variant . --pull (pull) . missing . --pull always . o always: SBOM registries.conf . SBOM . o missing: SBOM . . o never: SBOM . . o newer: SBOM registries.conf . SBOM . --quiet, -q () . --retry attempts (push/pull) / . 3 . --retry-delay duration (push/pull) / . 2s . --rewrite-timestamp (timestamp) --source-date-epoch ( ) . --rm bool-value ( true). --runtime path (path) (runtime) OCI RUN . runc crun cgroups V2 . : BUILDAH_RUNTIME . export BUILDAH_RUNTIME=/usr/bin/crun --runtime-flag flag . (man pages) . : -- . runc --log-format json buildah build --runtime-flag log-format=json . --save-stages bool-value (stages) ( false ). Buildah . . --save-stages --layers --layers ( ) . --stage-labels ( ) . --sbom preset / SBOM (Software Bills Of Materials) (build contexts) . --sbom-image-output --sbom- image-purl-output --sbom-output --sbom-purl-output . (presets) : o "syft", "syft-cyclonedx": --sbom-scanner-image=ghcr.io/anchore/syft --sbom-scanner-command="/syft scan -q dir:{ROOTFS} --output cyclonedx-json={OUTPUT}" --sbom-scanner-command="/syft scan -q dir:{CONTEXT} --output cyclonedx-json={OUTPUT}" --sbom-merge-strategy=merge-cyclonedx-by-component-name-and- version o "syft-spdx": --sbom-scanner-image=ghcr.io/anchore/syft --sbom-scanner-command="/syft scan -q dir:{ROOTFS} --output spdx-json={OUTPUT}" --sbom-scanner-command="/syft scan -q dir:{CONTEXT} --output spdx-json={OUTPUT}" --sbom-merge-strategy=merge-spdx-by-package-name-and- versioninfo o "trivy", "trivy-cyclonedx": --sbom-scanner-image=ghcr.io/aquasecurity/trivy --sbom-scanner-command="trivy filesystem -q {ROOTFS} --format cyclonedx --output {OUTPUT}" --sbom-scanner-command="trivy filesystem -q {CONTEXT} --format cyclonedx --output {OUTPUT}" --sbom-merge-strategy=merge-cyclonedx-by-component-name-and- version o "trivy-spdx": --sbom-scanner-image=ghcr.io/aquasecurity/trivy --sbom-scanner-command="trivy filesystem -q {ROOTFS} --format spdx-json --output {OUTPUT}" --sbom-scanner-command="trivy filesystem -q {CONTEXT} --format spdx-json --output {OUTPUT}" --sbom-merge-strategy=merge-spdx-by-package-name-and- versioninfo --sbom-image-output path SBOM (SBOM) . . --sbom-image-purl-output path SBOM PURL ( / package URL ) PURL . . --sbom-merge-strategy method --sbom-scanner- command . : o cat () . o merge-cyclonedx-by-component-name-and-version "component" JSON "name" "version" . . o merge-spdx-by-package-name-and-versioninfo "package" JSON "name" "versionInfo" . . --sbom-output file SBOM (SBOM) . . --sbom-purl-output file SBOM PURL ( / package URL ) PURL . . --sbom-scanner-command image SBOM . . : - {ROOTFS} bind mount. - {CONTEXT} (build context) bind mount. - {OUTPUT} . --sbom-scanner-image image SBOM . --secret=id=id[,src=envOrFile][,env=ENV][,type=file|env] ( / secret) Containerfile . "id" "src" ( ) "env" . () /run/secrets/ (mount) . --mount RUN Containerfile : RUN --mount=type=secret,id=mysecret cat /run/secrets/mysecret "target" "dst" "destination" RUN --mount . RUN --mount=type=secret,id=mysecret,target=/run/secrets/myothersecret cat /run/secrets/myothersecret : RUN --mount=type=secret,id=mysecret,env=FOO sh -c 'echo "Hello $FOO"' : . --security-opt=[] "apparmor=unconfined" : apparmor "apparmor=your-profile" : (profile) apparmor "label=user:USER" : "label=role:ROLE" : "label=type:TYPE" : "label=level:LEVEL" : "label=disable" : "mask=/path/1:/path/2": . . "no-new-privileges" : "seccomp=unconfined" : seccomp "seccomp=profile.json : JSON seccomp "unmask=ALL /path/1:/path/2 (/proc/*): . ALL . /proc/acpi, /proc/interrupts, /proc/kcore, /proc/keys, /proc/latency_stats, /proc/sched_debug, /proc/scsi, /proc/timer_list, /proc/timer_stats, /sys/devices/virtual/powercap, /sys/firmware /sys/fs/selinux. /proc/asound /proc/bus /proc/fs /proc/irq /proc/sys /proc/sysrq-trigger. --shm-size="" /dev/shm. . number 0 . b () k () m () g () . . 64m . --sign-by fingerprint GPG (fingerprint) . --skip-unused-stages bool-value ( true ). --source-date-epoch seconds << >> (created) (Unix epoch 00:00:00 UTC ) ( SOURCE_DATE_EPOCH ). <> (commit) sha256 Containerfile (build context) . (build arg) SOURCE_DATE_EPOCH . <> . --output . --timestamp . --source-policy-file pathname JSON (source policy) BuildKit . ( FROM) . ( ) Containerfile . (build reproducibility) . JSON . : - action: . : - ALLOW: ( ). - DENY: . - CONVERT: updates. - selector: . - identifier: ( docker- image://docker.io/library/alpine:latest). - matchType: . EXACT WILDCARD ( glob * ?). WILDCARD . - updates: CONVERT . . . : CONVERT --build-context containers- registries.conf(5) . : --build-context registries.conf. alpine:latest : { "rules": [ { "action": "CONVERT", "selector": { "identifier": "docker-image://docker.io/library/alpine:latest" }, "updates": { "identifier": "docker-image://docker.io/library/alpine@sha256:..." } } ] } ubuntu : { "rules": [ { "action": "DENY", "selector": { "identifier": "docker-image://docker.io/library/ubuntu:*", "matchType": "WILDCARD" } } ] } --squash () (squash) . ( false ). Buildah . --layers . --ssh=default|id[=socket>|[,] SSH . default=$SSH_AUTH_SOCK . ssh --mount RUN Containerfile : RUN --mount=type=secret,id=id mycmd : root mode uid gid mount . ssh app uid=50000: # Switch to application user (Note that uid depends on container image) USER app # ...and check whether ssh identities are available RUN --mount=type=ssh,uid=50000 ssh-add -L --stage-labels bool-value ( false ). --save-stages . : - io.buildah.stage.name: ( FROM ... AS alias) - io.buildah.stage.base: (pullspec ) . --stdin (stdin) RUN. RUN Containerfile apt . --stdin . --tag, -t imageName . imageName localhost . --tag containers-transports(5) . containers- storage ( ) . buildah build --tag=oci-archive:./foo.ociarchive . buildah build -t quay.io/username/foo . --target stageName () . Containerfile --target . . --timestamp seconds << >> (created) (Unix epoch 00:00:00 UTC ) ( ). <> (commit) sha256 Containerfile (build context) . --timestamp <> . --timestamp --output . --source-date-epoch . --tls-verify bool-value HTTPS ( true ) HTTPS ADD. TLS . --ulimit type=soft-limit[:hard-limit] RUN . . : "core": (core dump) ( ulimit -c) "cpu": CPU ( ulimit -t) "data": (data segment) ( ulimit -d) "fsize": (ulimit -f) "locks": (ulimit -x) "memlock": (ulimit -l) "msgqueue": (ulimit -q) "nice": niceness ( nice -n ulimit -e) "nofile": (ulimit -n) "nofile": (1048576) root "nproc": (ulimit -u) "nproc": (1048576) root "rss": (RSS) ( ulimit -m) "rtprio": (real-time) ( ulimit -r) "rttime": "sigpending": (ulimit -i) "stack": (stack) ( ulimit -s) --unsetannotation annotation (annotation) . --unsetenv env . --unsetlabel label (label) . --userns how (user namespaces) RUN . "" ( ) "private" "auto" "host" buildah . auto: . --userns=auto containers (subordinate user IDs) /etc/subuid /etc/subgid . : containers:2147483647:2147483648. Buildah UID GID containers . UID . UID GID size . auto: o gidmapping=CONTAINER_GID:HOST_GID:SIZE: GID . o size=SIZE: --userns=auto:size=8192. size auto . o uidmapping=CONTAINER_UID:HOST_UID:SIZE: UID . --userns-gid-map mapping GID . RUN (user namespace) UID GID . GID GID (ID) . remap-gids options /etc/containers/storage.conf . --userns-gid-map . --userns-gid-map-group group GID /etc/subgid . RUN UID GID . --userns-uid-map-user --userns-gid-map-group buildah . --userns-gid-map buildah(1) . : (rootless) (rootful) . --userns-uid-map mapping UID . RUN UID GID . UID UID . remap-uids options /etc/containers/storage.conf . --userns-uid-map . --userns-uid-map-user user UID /etc/subuid . RUN UID GID . --userns-gid-map-group --userns-uid-map-user buildah . : (rootless) (rootful) . --uts how UTS RUN . "" ( ) "container" UTS "host" UTS buildah UTS . --variant="" (variant) . --volume, -v[=[HOST-DIR:CONTAINER-DIR[:OPTIONS]]] RUN (mount) . OPTIONS : o [rw|ro] o [U] o [z|Z|O] o [[r]shared|[r]slave|[r]private] [1] <#Footnote1> CONTAINER-DIR /src/docs . HOST- DIR . Buildah HOST-DIR bind-mount . /foo Buildah /foo bind-mount . -v . (Write Protected Volume Mounts) :ro :rw - . - . . (Chowning Volume Mounts) Buildah . (user namespace) UID GID UID GID . :U Buildah UID GID UID GID . (Labeling Volume Mounts) SELinux . . Buildah . :z :Z . Buildah . z Buildah . Buildah . / . Z Buildah . . (Overlay Volume Mounts) :O Buildah Overlay . RUN . (Overlay FS) (lower) (upper) . RUN tmpfs. RUN RUN . overlay (package cache) . : o O Z z . . SELinux . SELinux . o overlay . . bind mount private . . (propagation property) . shared . slave . :[r]shared :[r]slave :[r]private . bind mount . ( ) . shared shared . slave shared slave . [1] <#Footnote1> df findmnt -o TARGET,PROPAGATION findmnt /proc/self/mountinfo . optional fields . shared:X shared master:X slave private . [1] <#Footnote1> mount . bind mount /foo mount --bind /foo /foo mount --make- private --make-shared /foo . /foo shared . . / /foo mount --make-shared / / shared . (BUILD TIME VARIABLES) ENV Containerfile . . Containerfile Containerfile . --build-arg Containerfile ENV (override) . o HTTP_PROXY o HTTPS_PROXY o FTP_PROXY o NO_PROXY <#using-build-time-variables> . (EXAMPLES) Containerfile (Build an image using local Containerfiles) buildah build . buildah build -f Containerfile . cat ~/Containerfile | buildah build -f - . buildah build -f Containerfile.simple -f Containerfile.notsosimple . buildah build --timestamp=$(date '+%s') -t imageName . buildah build -t imageName . buildah build --tls-verify=true -t imageName -f Containerfile.simple . buildah build --tls-verify=false -t imageName . buildah build --runtime-flag log-format=json . buildah build -f Containerfile --runtime-flag debug . buildah build --authfile /tmp/auths/myauths.json --cert-dir ~/auth --tls-verify=true --creds=username:password -t imageName -f Containerfile.simple . buildah build --memory 40m --cpu-period 10000 --cpu-quota 50000 --ulimit nofile=1024:1028 -t imageName . buildah build --security-opt label=level:s0:c100,c200 --cgroup-parent /path/to/cgroup/parent -t imageName . buildah build --arch=arm --variant v7 -t imageName . buildah build --volume /home/test:/myvol:ro,Z -t imageName . buildah build -v /home/test:/myvol:z,U -t imageName . buildah build -v /var/lib/dnf:/var/lib/dnf:O -t imageName . buildah build --layers -t imageName . buildah build --save-stages -t imageName . buildah build --save-stages --layers -t imageName . buildah build --save-stages --stage-labels -t imageName . buildah build --save-stages --stage-labels --layers -t imageName . buildah build --no-cache -t imageName . buildah build -f Containerfile --layers --force-rm -t imageName . buildah build --no-cache --rm=false -t imageName . buildah build --dns-search=example.com --dns=223.5.5.5 --dns- option=use-vc . buildah build -f Containerfile.in --cpp-flag="-DDEBUG" -t imageName . buildah build --network mynet . buildah build --env LANG=en_US.UTF-8 -t imageName . buildah build --env EDITOR -t imageName . buildah build --unsetenv LANG -t imageName . buildah build --os-version 10.0.19042.1645 -t imageName . buildah build --os-feature win32k -t imageName . buildah build --os-feature win32k- -t imageName . buildah build --secret=id=mysecret . buildah build --secret=id=mysecret,env=MYSECRET . buildah build --secret=id=mysecret,src=MYSECRET,type=env . buildah build --secret=id=mysecret,src=.mysecret,type=file . buildah build --secret=id=mysecret,src=.mysecret . (Building an image with a source policy) buildah build --source-policy-file /etc/buildah/source-policy.json -t imageName . FROM --after (Using FROM --after for explicit stage dependencies) FROM oci- archive:file.ociarchive Buildah . --after FROM : FROM quay.io/skopeo/stable AS builder RUN --mount=type=bind,target=/src,rw skopeo copy docker://quay.io/fedora/fedora-minimal oci-archive:/src/fedora.ociarchive FROM --after=builder oci-archive:fedora.ociarchive # FROM builder --manifest ( ) buildah build --arch arm --manifest myimage /tmp/mysrc buildah build --arch amd64 --manifest myimage /tmp/mysrc buildah build --arch s390x --manifest myimage /tmp/mysrc buildah bud --platform linux/s390x,linux/ppc64le,linux/amd64 --manifest myimage /tmp/mysrc buildah build --platform linux/arm64 --platform linux/amd64 --manifest myimage /tmp/mysrc buildah bud --all-platforms --manifest myimage /tmp/mysrc (--output) buildah build -o out . buildah build --output type=local,dest=out . buildah build --output type=tar,dest=out.tar . buildah build -o - . > out.tar (Preserving and querying intermediate stage images) : buildah build --save-stages --stage-labels -t myapp . : buildah images --filter "label=io.buildah.stage.name=builder" : buildah images --filter "label=io.buildah.stage.base=golang:1.21" (Building an image using a URL) URL (clone) (context) . Containerfile Dockerfile . . buildah build https://github.com/containers/PodmanHello.git : (https://github.blog/2021-09-01-improving- git-protocol-security-github) git:// clone . URL https:// . URL (tarball) Buildah . Containerfile Dockerfile . -f PATH/Containerfile . buildah build -f dev/Containerfile https://10.10.10.1/buildah/context.tar.gz : 'xz' 'bzip2' 'gzip' 'identity' ( ). (Using Build Time Variables) HTTP_PROXY Containerfile buildah build --build-arg=HTTP_PROXY="http://127.0.0.1:8321" (ENVIRONMENT) BUILD_REGISTRY_SOURCES BUILD_REGISTRY_SOURCES JSON insecureRegistries blockedRegistries allowedRegistries . (pull) blockedRegistries . allowedRegistries . TMPDIR TMPDIR (pull) (push) . '/var/tmp' . (FILES) .containerignore/.dockerignore .containerignore/.dockerignore buildah build . .containerignore . --ignorefile . Buildah COPY ADD Containerfile/Dockerfile . COPY ADD --exclude . (Unix shell globs) .containerignore/.dockerignore / . Buildah ** ( ) . **/*.go .go . .containerignore: # */*.c **/output* src */*.c .c . include/rootless.c. **/output* output . src src src . ! ( ) . .containerignore/.dockerignore : *.doc !Help.doc doc. Help.doc . .containerignore : https://github.com/containers/common/blob/main/docs/containerignore.5.md : ADD .containerignore . registries.conf (/etc/containers/registries.conf) registries.conf . policy.json (/etc/containers/policy.json) . . . (SEE ALSO) buildah(1), cpp(1), buildah-login(1), docker-login(1), namespaces(7), pid_namespaces(7), containers-policy.json(5), containers- registries.conf(5), user_namespaces(7), crun(1), runc(8), containers.conf(5), oci-hooks(5), containers-transports(5), containers- auth.json(5) (FOOTNOTES) 1: Buildah () . (mount propagation) master slave . . Buildah . buildah April 2017 buildah-build(1)