4 title: "Starting a Workflow at the Command Line"
7 Copyright (C) The Arvados Authors. All rights reserved.
9 SPDX-License-Identifier: CC-BY-SA-3.0
12 {% include 'what_is_cwl' %}
14 {% include 'tutorial_expectations' %}
16 This tutorial will demonstrate how to submit a workflow at the command line using @arvados-cwl-runner@.
18 # "Get the tutorial files":#get-files
19 # "Submitting a workflow to an Arvados cluster":#submitting
20 # "Registering a workflow to use in Workbench":#registering
21 # "Make a workflow file directly executable":#executable
23 h2(#get-files). Get the tutorial files
25 The tutorial files are located in the documentation section of the Arvados source repository, which can be found on "git.arvados.org":https://git.arvados.org/arvados.git/tree/HEAD:/doc/user/cwl/bwa-mem or "github":https://github.com/arvados/arvados/tree/main/doc/user/cwl/bwa-mem
28 <pre><code>~$ <span class="userinput">git clone https://git.arvados.org/arvados.git</span>
29 ~$ <span class="userinput">cd arvados/doc/user/cwl/bwa-mem</span>
33 The tutorial data is hosted on "https://playground.arvados.org":https://playground.arvados.org (also referred to by the identifier *pirca*). If you are using a different Arvados instance, you may need to copy the data to your own instance. One way to do this is with "arv-copy":{{site.baseurl}}/user/topics/arv-copy.html (this requires signing up for a free playground.arvados.org account).
36 <pre><code>~$ <span class="userinput">arv-copy --src pirca --dst settings 2463fa9efeb75e099685528b3b9071e0+438</span>
37 ~$ <span class="userinput">arv-copy --src pirca --dst settings ae480c5099b81e17267b7445e35b4bc7+180</span>
41 If you do not wish to create an account on "https://playground.arvados.org":https://playground.arvados.org, you may download the files anonymously and upload them to your local Arvados instance:
43 "https://collections.pirca.arvadosapi.com/c=2463fa9efeb75e099685528b3b9071e0+438/":https://collections.pirca.arvadosapi.com/c=2463fa9efeb75e099685528b3b9071e0+438/
45 "https://collections.pirca.arvadosapi.com/c=ae480c5099b81e17267b7445e35b4bc7+180/":https://collections.pirca.arvadosapi.com/c=ae480c5099b81e17267b7445e35b4bc7+180/
47 h2(#submitting). Submitting a workflow to an Arvados cluster
49 h3. Submit a workflow and wait for results
51 Use @arvados-cwl-runner@ to submit CWL workflows to Arvados. After submitting the job, it will wait for the workflow to complete and print out the final result to standard output.
53 *Note:* Once submitted, the workflow runs entirely on Arvados, so even if you log out, the workflow will continue to run. However, if you interrupt @arvados-cwl-runner@ with control-C it will cancel the workflow.
56 <pre><code>~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">arvados-cwl-runner bwa-mem.cwl bwa-mem-input.yml</span>
57 arvados-cwl-runner 1.0.20160628195002, arvados-python-client 0.1.20160616015107, cwltool 1.0.20160629140624
58 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Upload local files: "bwa-mem.cwl"
59 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Uploaded to zzzzz-4zz18-h7ljh5u76760ww2
60 2016-06-30 14:56:40 arvados.cwl-runner[27002] INFO: Submitted job zzzzz-8i9sb-fm2n3b1w0l6bskg
61 2016-06-30 14:56:41 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Running
62 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Complete
63 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Overall process status is success
66 "location": "keep:54325254b226664960de07b3b9482349+154/HWI-ST1027_129_D0THKACXX.1_1.sam",
67 "checksum": "sha1$0dc46a3126d0b5d4ce213b5f0e86e2d05a54755a",
77 When running a workflow on an Arvados cluster, the input files must be stored in Keep. There are several ways this can happen.
79 A URI reference to Keep uses the @keep:@ scheme followed by either the portable data hash or UUID of the collection and then the location of the file inside the collection. For example, @keep:2463fa9efeb75e099685528b3b9071e0+438/19.fasta.bwt@ or @keep:zzzzz-4zz18-zzzzzzzzzzzzzzz/19.fasta.bwt@.
81 If you reference a file in "arv-mount":{{site.baseurl}}/user/tutorials/tutorial-keep-mount-gnu-linux.html, such as @/home/example/keep/by_id/2463fa9efeb75e099685528b3b9071e0+438/19.fasta.bwt@, then @arvados-cwl-runner@ will automatically determine the appropriate Keep URI reference.
83 If you reference a local file which is not in @arv-mount@, then @arvados-cwl-runner@ will upload the file to Keep and use the Keep URI reference from the upload.
85 You can also execute CWL files that have been uploaded Keep:
89 ~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">arv-put --portable-data-hash --name "bwa-mem.cwl" bwa-mem.cwl</span>
90 2020-08-20 13:40:02 arvados.arv_put[12976] INFO: Collection saved as 'bwa-mem.cwl'
91 f141fc27e7cfa7f7b6d208df5e0ee01b+59
92 ~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">arvados-cwl-runner keep:f141fc27e7cfa7f7b6d208df5e0ee01b+59/bwa-mem.cwl bwa-mem-input.yml</span>
93 arvados-cwl-runner 1.0.20160628195002, arvados-python-client 0.1.20160616015107, cwltool 1.0.20160629140624
94 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Uploaded to zzzzz-4zz18-h7ljh5u76760ww2
95 2016-06-30 14:56:40 arvados.cwl-runner[27002] INFO: Submitted job zzzzz-8i9sb-fm2n3b1w0l6bskg
96 2016-06-30 14:56:41 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Running
97 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Complete
98 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Overall process status is success
101 "location": "keep:54325254b226664960de07b3b9482349+154/HWI-ST1027_129_D0THKACXX.1_1.sam",
102 "checksum": "sha1$0dc46a3126d0b5d4ce213b5f0e86e2d05a54755a",
110 Note: uploading a workflow file to Keep is _not_ the same as registering the workflow for use in Workbench. See "Registering a workflow to use in Workbench":#registering below.
114 Workflows submitted with @arvados-cwl-runner@ will take advantage of Arvados job reuse. If you submit a workflow which is identical to one that has run before, it will short cut the execution and return the result of the previous run. This also applies to individual workflow steps. For example, a two step workflow where the first step has run before will reuse results for first step and only execute the new second step. You can disable this behavior with @--disable-reuse@.
116 h3(#docker). Docker images
118 Docker images referenced by the workflow must be uploaded to Arvados. This requires @docker@ to be installed and usable by the user running @arvados-cwl-runner@. If the image is not present in the local Docker instance, @arvados-cwl-runner@ will first attempt to pull the image using @docker pull@, then upload it.
120 If there is already a Docker image in Arvados with the same name, it will use the existing image. In this case, the submitter will not use Docker.
122 The @--match-submitter-images@ option will check the id of the image in the local Docker instance and compare it to the id of the image already in Arvados with the same name and tag. If they are different, it will choose the image matching the local image id, which will be uploaded it if necessary. This helpful for development, if you locally rebuild the image with the 'latest' tag, the @--match-submitter-images@ will ensure that the newer version is used.
124 h3. Command line options
126 See "arvados-cwl-runner options":{{site.baseurl}}/user/cwl/cwl-run-options.html
128 h2(#registering). Registering a workflow to use in Workbench
130 Use @--create-workflow@ to register a CWL workflow with Arvados. This enables you to share workflows with other Arvados users, and run them by clicking the <span class="btn btn-sm btn-primary"><i class="fa fa-fw fa-gear"></i> Run a process...</span> button on the Workbench Dashboard and on the command line by UUID.
133 <pre><code>~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">arvados-cwl-runner --create-workflow bwa-mem.cwl</span>
134 arvados-cwl-runner 1.0.20160628195002, arvados-python-client 0.1.20160616015107, cwltool 1.0.20160629140624
135 2016-07-01 12:21:01 arvados.arv-run[15796] INFO: Upload local files: "bwa-mem.cwl"
136 2016-07-01 12:21:01 arvados.arv-run[15796] INFO: Uploaded to zzzzz-4zz18-7e0hedrmkuyoei3
137 2016-07-01 12:21:01 arvados.cwl-runner[15796] INFO: Created template zzzzz-p5p6p-rjleou1dwr167v5
138 zzzzz-p5p6p-rjleou1dwr167v5
142 You can provide a partial input file to set default values for the workflow input parameters. You can also use the @--name@ option to set the name of the workflow:
145 <pre><code>~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">arvados-cwl-runner --name "My workflow with defaults" --create-workflow bwa-mem.cwl bwa-mem-template.yml</span>
146 arvados-cwl-runner 1.0.20160628195002, arvados-python-client 0.1.20160616015107, cwltool 1.0.20160629140624
147 2016-07-01 14:09:50 arvados.arv-run[3730] INFO: Upload local files: "bwa-mem.cwl"
148 2016-07-01 14:09:50 arvados.arv-run[3730] INFO: Uploaded to zzzzz-4zz18-0f91qkovk4ml18o
149 2016-07-01 14:09:50 arvados.cwl-runner[3730] INFO: Created template zzzzz-p5p6p-0deqe6nuuyqns2i
150 zzzzz-p5p6p-zuniv58hn8d0qd8
154 h3. Running registered workflows at the command line
156 You can run a registered workflow at the command line by its UUID:
159 <pre><code>~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">arvados-cwl-runner pirca-7fd4e-3nqbw08vtjl8ybz --help</span>
160 INFO /home/peter/work/scripts/venv3/bin/arvados-cwl-runner 2.1.0.dev20200814195416, arvados-python-client 2.1.0.dev20200814195416, cwltool 3.0.20200807132242
161 INFO Resolved 'pirca-7fd4e-3nqbw08vtjl8ybz' to 'arvwf:pirca-7fd4e-3nqbw08vtjl8ybz#main'
162 usage: pirca-7fd4e-3nqbw08vtjl8ybz [-h] [--PL PL] [--group_id GROUP_ID]
163 [--read_p1 READ_P1] [--read_p2 READ_P2]
164 [--reference REFERENCE]
165 [--sample_id SAMPLE_ID]
168 positional arguments:
169 job_order Job input json file
172 -h, --help show this help message and exit
175 --read_p1 READ_P1 The reads, in fastq format.
176 --read_p2 READ_P2 For mate paired reads, the second file (optional).
177 --reference REFERENCE
178 The index files produced by `bwa index`
179 --sample_id SAMPLE_ID
183 h2(#executable). Make a workflow file directly executable
185 You can make a workflow file directly executable (@cwl-runner@ should be an alias to @arvados-cwl-runner@) by adding the following line to the top of the file:
188 <pre><code>#!/usr/bin/env cwl-runner
193 <pre><code>~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">./bwa-mem.cwl bwa-mem-input.yml</span>
194 arvados-cwl-runner 1.0.20160628195002, arvados-python-client 0.1.20160616015107, cwltool 1.0.20160629140624
195 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Upload local files: "bwa-mem.cwl"
196 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Uploaded to zzzzz-4zz18-h7ljh5u76760ww2
197 2016-06-30 14:56:40 arvados.cwl-runner[27002] INFO: Submitted job zzzzz-8i9sb-fm2n3b1w0l6bskg
198 2016-06-30 14:56:41 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Running
199 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Complete
200 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Overall process status is success
203 "path": "keep:54325254b226664960de07b3b9482349+154/HWI-ST1027_129_D0THKACXX.1_1.sam",
204 "checksum": "sha1$0dc46a3126d0b5d4ce213b5f0e86e2d05a54755a",
212 You can even make an input file directly executable the same way with the following two lines at the top:
215 <pre><code>#!/usr/bin/env cwl-runner
216 cwl:tool: <span class="userinput">bwa-mem.cwl</span>
221 <pre><code>~/arvados/doc/user/cwl/bwa-mem$ <span class="userinput">./bwa-mem-input.yml</span>
222 arvados-cwl-runner 1.0.20160628195002, arvados-python-client 0.1.20160616015107, cwltool 1.0.20160629140624
223 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Upload local files: "bwa-mem.cwl"
224 2016-06-30 14:56:36 arvados.arv-run[27002] INFO: Uploaded to zzzzz-4zz18-h7ljh5u76760ww2
225 2016-06-30 14:56:40 arvados.cwl-runner[27002] INFO: Submitted job zzzzz-8i9sb-fm2n3b1w0l6bskg
226 2016-06-30 14:56:41 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Running
227 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Job bwa-mem.cwl (zzzzz-8i9sb-fm2n3b1w0l6bskg) is Complete
228 2016-06-30 14:57:12 arvados.cwl-runner[27002] INFO: Overall process status is success
231 "path": "keep:54325254b226664960de07b3b9482349+154/HWI-ST1027_129_D0THKACXX.1_1.sam",
232 "checksum": "sha1$0dc46a3126d0b5d4ce213b5f0e86e2d05a54755a",
240 h2(#setup). Setting up arvados-cwl-runner
242 See "Arvados CWL Runner":{{site.baseurl}}/sdk/python/arvados-cwl-runner.html