SSH Key Injection fails with jenkins/ssh-agent container

Open rachelf42 opened this issue 7 months ago • 1 comments

Jenkins and plugins versions report

Environment

Jenkins: 2.516.3 OS: Linux - 6.8.0-84-generic Java: 21.0.8 - Ubuntu (OpenJDK 64-Bit Server VM)

ant:518.v8d8dc7945eca_ antisamy-markup-formatter:173.v680e3a_b_69ff3 apache-httpcomponents-client-4-api:4.5.14-269.vfa_2321039a_83 apache-httpcomponents-client-5-api:5.5-170.v023de017ccd7 asm-api:9.8-163.vb_2a_96d3f9c3c authentication-tokens:1.144.v5ff4a_5ec5c33 bootstrap5-api:5.3.8-890.v1c5cf4fa_178e bouncycastle-api:2.30.1.81-264.v95c79c0e772c branch-api:2.1253.v6e7f7519f710 build-blocker-plugin:166.vc82fc20b_a_ed6 build-timeout:1.38 build-token-root:151.va_e52fe3215fc caffeine-api:3.2.2-178.v353b_8428ed56 checks-api:373.vfe7645102093 cloud-stats:377.vd8a_6c953e98e cloudbees-folder:6.1045.vb_ddd55e2d03f commons-compress-api:1.28.0-1 commons-lang3-api:3.18.0-98.v3a_674c06072d commons-text-api:1.14.0-194.v804a_dc3a_1b_d8 configuration-as-code:1985.vdda_32d0c4ea_b_ credentials:1447.v4cb_b_539b_5321 credentials-binding:702.vfe613e537e88 dark-theme:574.va_19f05d54df5 display-url-api:2.217.va_6b_de84cc74b_ docker-commons:457.v0f62a_94f11a_3 docker-java-api:3.5.3-122.v156e51f30c0a_ docker-plugin:1274.vc0203fdf2e74 durable-task:605.v9a_b_9040c9970 echarts-api:6.0.0-1146.v5c8f3b_8f0573 eddsa-api:0.3.0.1-19.vc432d923e5ee email-ext:1925.v1598902b_58dd font-awesome-api:7.0.1-859.v128d3a_efb_6e5 git:5.7.0 git-client:6.4.0 github:1.45.0 github-api:1.330-492.v3941a_032db_2a_ github-branch-source:1864.v411feec5e78e gradle:2.16.1149.v711b_998b_0532 gson-api:2.13.2-173.va_a_092315913c instance-identity:203.v15e81a_1b_7a_38 ionicons-api:94.vcc3065403257 jackson2-api:2.20.0-411.v6ef8fdee4fe9 jakarta-activation-api:2.1.3-2 jakarta-mail-api:2.1.3-3 javax-activation-api:1.2.0-8 javax-mail-api:1.6.2-11 jaxb:2.3.9-133.vb_ec76a_73f706 jjwt-api:0.11.5-120.v0268cf544b_89 job-dsl:1.93 joda-time-api:2.14.0-149.v1c3ce991d1b_9 jquery3-api:3.7.1-594.vb_3864f326cf0 json-api:20250517-173.v596efb_962a_31 json-path-api:2.9.0-190.veefca_05d5477 jsoup:1.21.2-66.v6ea_38164b_8a_2 junit:1355.v45e2ea_65863c ldap:780.vcb_33c9a_e4332 mailer:522.va_995fa_cfb_8b_d matrix-auth:3.2.8 matrix-project:858.vb_b_eb_9a_7ea_99e metrics:4.2.33-484.v2fcd689980d1 mina-sshd-api-common:2.16.0-167.va_269f38cc024 mina-sshd-api-core:2.16.0-167.va_269f38cc024 okhttp-api:4.12.0-195.vc02552c04ffd pipeline-build-step:571.v08a_fffd4b_0ce pipeline-github-lib:65.v203688e7727e pipeline-graph-view:642.v39f37c8e1e70 pipeline-groovy-lib:763.v13008816b_de7 pipeline-input-step:534.v352f0a_e98918 pipeline-milestone-step:138.v78ca_76831a_43 pipeline-model-api:2.2273.v643f36ed9e94 pipeline-model-definition:2.2273.v643f36ed9e94 pipeline-model-extensions:2.2273.v643f36ed9e94 pipeline-stage-step:322.vecffa_99f371c pipeline-stage-tags-metadata:2.2273.v643f36ed9e94 plain-credentials:199.v9f8e1f741799 plugin-util-api:6.1167.v022176c7e0ca_ prism-api:1.30.0-609.vf0a_df102d9a_f resource-disposer:0.25 saferestart:102.v4dc1b_9636a_ee scm-api:709.v6c27075a_b_1c7 script-security:1378.vf25626395f49 snakeyaml-api:2.3-125.v4d77857a_b_402 ssh-credentials:361.vb_f6760818e8c ssh-slaves:3.1071.v0d059c7b_c555 sshd:3.374.v19b_d59ce6610 structs:353.v261ea_40a_80fb_ theme-manager:319.v9193461f9671 timestamper:1.30 token-macro:477.vd4f0dc3cb_cf1 trilead-api:2.209.v0e69b_c43c245 variant:70.va_d9f17f859e0 workflow-aggregator:608.v67378e9d3db_1 workflow-api:1384.vdc05a_48f535f workflow-basic-steps:1098.v808b_fd7f8cf4 workflow-cps:4204.v2894b_cd7b_92f workflow-durable-task-step:1464.v2d3f5c68f84c workflow-job:1546.v62a_c59c112dd workflow-multibranch:821.vc3b_4ea_780798 workflow-scm-step:452.vdf1ca_c8d3a_87 workflow-step-api:706.v518c5dcb_24c0 workflow-support:989.va_20a_1a_57710a_ ws-cleanup:0.49

What Operating System are you using (both controller, and any agents involved in the problem)?

Controller: Ubuntu Noble Agent: Docker image jenkins/ssh-agent:latest

Reproduction steps

set up docker cloud as normal
set agent image to jenkins/ssh-agent:latest
observe jenkins failing to provision agents

Expected Results

Agent connecting and running pipeline

Actual Results

Pipeline stayed stuck waiting for node, cloud stats showed container failed with error:

java.io.IOException: SSH service hadn't started after 60 seconds and 41 milliseconds.

Anything else?

I found below issue in the image's repo, and setting the image to jenkins/ssh-agent:6.11.1 fixed it as described. Searched for a corresponding issue here as the conclusion there was it was a problem with this plugin not the image, did not find one so created this.

https://github.com/jenkinsci/docker-ssh-agent/issues/513

Are you interested in contributing a fix?

No response

Sep 24 '25 22:09 rachelf42

https://github.com/jenkinsci/docker-plugin/pull/1147#issuecomment-2848614675

Oct 29 '25 20:10 lemeurherve