1singularity(1) singularity(1)
2
6 singularity-build - Build a Singularity image
7
11 singularity build [local options...] <IMAGE PATH> <BUILD SPEC>
12
16 IMAGE PATH:
17 When Singularity builds the container, output can be one of a few
20 formats:
21 default: The compressed Singularity read only image format (default)
24 sandbox: This is a read-write container within a directory structure
25 note: It is a common workflow to use the "sandbox" mode for development
29 of the
30 container, and then build it as a default Singularity image for
31 production
32 use. The default format is immutable.
33 BUILD SPEC:
36 The build spec target is a definition (def) file, local image, or URI
39 that can
40 be used to create a Singularity container. Several different local
41 target
42 formats exist:
43 def file : This is a recipe for building a container (examples below)
46 directory: A directory structure containing a (ch)root file system
47 image: A local image on your machine (will convert to sif if
48 it is legacy format)
49 Targets can also be remote and defined by a URI of the following
53 formats:
54 library:// an image library (default https://cloud.sylabs.io/library)
57 docker:// a Docker registry (default Docker Hub)
58 shub:// a Singularity registry (default Singularity Hub)
59
64 --builder=" ⟨https://build.sylabs.io"⟩
65 remote Build Service URL, setting this implies --remote
66 -d, --detached[=false]
69 submit build job and print build ID (no real-time logs and requires
70 --remote)
71 --docker-login[=false]
74 login to a Docker Repository interactively
75 -F, --force[=false]
78 delete and overwrite an image if it currently exists
79 -h, --help[=false]
82 help for build
83 --json[=false]
86 interpret build definition as JSON
87 --library=" ⟨https://library.sylabs.io"⟩
90 container Library URL
91 --no-cleanup[=false]
94 do NOT clean up bundle after failed build, can be helpul for
95 debugging
96 --nohttps[=false]
99 do NOT use HTTPS, for communicating with local docker registry
100 -T, --notest[=false]
103 build without running tests in %test section
104 -r, --remote[=false]
107 build image remotely (does not require root)
108 -s, --sandbox[=false]
111 build image as sandbox format (chroot directory structure)
112 --section=[all]
115 only run specific section(s) of deffile (setup, post, files,
116 environment, test, labels, none)
117 --tmpdir=""
120 specify a temporary directory to use for build
121 -u, --update[=false]
124 run definition over existing container (skips header)
125
129 DEF FILE BASE OS:
130 Library:
132 Bootstrap: library
133 From: debian:9
134 Docker:
136 Bootstrap: docker
137 From: tensorflow/tensorflow:latest
138 IncludeCmd: yes # Use the CMD as runscript instead of ENTRYPOINT
139 Singularity Hub:
141 Bootstrap: shub
142 From: singularityhub/centos
143 YUM/RHEL:
145 Bootstrap: yum
146 OSVersion: 7
147 MirrorURL: http://mirror.centos.org/centos-%{OSVERSION}/%{OSVERSION}/os/x86_64/
148 Include: yum
149 Debian/Ubuntu:
151 Bootstrap: debootstrap
152 OSVersion: trusty
153 MirrorURL: http://us.archive.ubuntu.com/ubuntu/
154 Local Image:
156 Bootstrap: localimage
157 From: /home/dave/starter.img
158 Scratch:
160 Bootstrap: scratch # Populate the container with a minimal rootfs in %setup
161 DEFFILE SECTIONS:
163 %pre
165 echo "This is a scriptlet that will be executed on the host, as root before"
166 echo "the container has been bootstrapped. This section is not commonly used."
167 %setup
169 echo "This is a scriptlet that will be executed on the host, as root, after"
170 echo "the container has been bootstrapped. To install things into the container"
171 echo "reference the file system location with $SINGULARITY_ROOTFS."
172 %post
174 echo "This scriptlet section will be executed from within the container after"
175 echo "the bootstrap/base has been created and setup."
176 %test
178 echo "Define any test commands that should be executed after container has been"
179 echo "built. This scriptlet will be executed from within the running container"
180 echo "as the root user. Pay attention to the exit/return value of this scriptlet"
181 echo "as any non-zero exit code will be assumed as failure."
182 exit 0
183 %runscript
185 echo "Define actions for the container to be executed with the run command or"
186 echo "when container is executed."
187 %startscript
189 echo "Define actions for container to perform when started as an instance."
190 %labels
192 HELLO MOTO
193 KEY VALUE
194 %files
196 /path/on/host/file.txt /path/on/container/file.txt
197 relative_file.txt /path/on/container/relative_file.txt
198 %environment
200 LUKE=goodguy
201 VADER=badguy
202 HAN=someguy
203 export HAN VADER LUKE
204 %help
206 This is a text file to be displayed with the run-help command.
207 COMMANDS:
209 Build a sif file from a Singularity recipe file:
211 $ singularity build /tmp/debian0.sif /path/to/debian.def
212 Build a sif image from the Library:
214 $ singularity build /tmp/debian1.sif library://debian:latest
215 Build a base sandbox from DockerHub, make changes to it, then build sif
217 $ singularity build --sandbox /tmp/debian docker://debian:latest
218 $ singularity exec --writable /tmp/debian apt-get install python
219 $ singularity build /tmp/debian2.sif /tmp/debian
220
225 singularity(1)
226
230 29-May-2019 Auto generated by spf13/cobra
231Auto generated by spf13/cobra May 2019 singularity(1)