I read the page you linked, and the part regarding tags pagination. I infer from the page that I should be able to get a list of tags with the following.
https://hub.docker.com/v2/repositories/library/jenkins/tags/list But if I paste the URL on my browser, I get "txnid": "REPOSREQ-29168001-2818-486d-9af5-45c455b6155e", "message": "tag 'list' not found", "errinfo": { "api_call_docker_id": "", "api_call_name": "GetRepositoryTag", "api_call_start": "2020-11-26T16:03:21.274810611Z", "api_call_txnid": "REPOSREQ-29168001-2818-486d-9af5-45c455b6155e", "namespace": "library", "repository": "jenkins", "tag": "list" } } On Thursday, November 26, 2020 at 10:10:01 AM UTC-5 [email protected] wrote: > Yeah that makes sense. Thanks. > > Chris > > On Thursday, November 26, 2020 at 2:50:04 AM UTC-5 [email protected] > wrote: > >> The problem probably is that the centos image is not in the first 30 >> results . You would need to get the next page(s) until you find a centos >> image. >> See https://docs.docker.com/registry/spec/api/#tags for details. And >> remember that this endpoint has a limit on the numbe rof requests in a >> certain timeframe, so be sure to cache the result. >> [email protected] schrieb am Mittwoch, 25. November 2020 um 16:35:57 >> UTC+1: >> >>> That's what I essentially have already. Just need the correct >>> docker_image_tags_url value, and that post didn't tell me. >>> >>> On Wednesday, November 25, 2020 at 10:22:41 AM UTC-5 slide wrote: >>> >>>> This might get you started: >>>> https://gist.github.com/kizbitz/e59f95f7557b4bbb8bf2 >>>> >>>> >>>> >>>> On Wed, Nov 25, 2020 at 7:58 AM [email protected] <[email protected]> >>>> wrote: >>>> >>>>> I essentially want to get this list, but in a JSON format in an HTTP >>>>> response. But using this link as my docker_image_tags_url value for >>>>> my script doesn't work of course, that is, it gives a blank list. >>>>> >>>>> >>>>> https://hub.docker.com/r/jenkins/jenkins/tags?page_size=20&page=1&ordering=last_updated >>>>> . >>>>> >>>>> On Wednesday, November 25, 2020 at 9:40:16 AM UTC-5 [email protected] >>>>> wrote: >>>>> >>>>>> I want to use the Groovy script in this post >>>>>> <https://kublr.com/blog/advanced-jenkins-groovy-scripting-for-live-fetching-of-docker-images/> >>>>>> >>>>>> to get Jenkins versions. So I do this, where I change the >>>>>> docker_image_tags_url to point to a Jenkins end point. >>>>>> >>>>>> // Import the JsonSlurper class to parse Dockerhub API response >>>>>> import groovy.json.JsonSlurper >>>>>> // Set the URL we want to read from, it is MySQL from official >>>>>> Library for this example, limited to 20 results only. >>>>>> docker_image_tags_url = " >>>>>> https://hub.docker.com/v2/repositories/library/jenkins/tags?page_size=30 >>>>>> " >>>>>> try { >>>>>> // Set requirements for the HTTP GET request, you can add >>>>>> Content-Type headers and so on... >>>>>> def http_client = new URL(docker_image_tags_url).openConnection() >>>>>> as HttpURLConnection >>>>>> http_client.setRequestMethod('GET') >>>>>> // Run the HTTP request >>>>>> http_client.connect() >>>>>> // Prepare a variable where we save parsed JSON as a HashMap, >>>>>> it's good for our use case, as we just need the 'name' of each tag. >>>>>> def dockerhub_response = [:] >>>>>> // Check if we got HTTP 200, otherwise exit >>>>>> if (http_client.responseCode == 200) { >>>>>> dockerhub_response = new >>>>>> JsonSlurper().parseText(http_client.inputStream.getText('UTF-8')) >>>>>> } else { >>>>>> println("HTTP response error") >>>>>> System.exit(0) >>>>>> } >>>>>> // Prepare a List to collect the tag names into >>>>>> def image_tag_list = [] >>>>>> // Iterate the HashMap of all Tags and grab only their "names" >>>>>> into our List >>>>>> dockerhub_response.results.each { tag_metadata -> >>>>>> image_tag_list.add(tag_metadata.name) >>>>>> } >>>>>> // The returned value MUST be a Groovy type of List or a related >>>>>> type (inherited from List) >>>>>> // It is necessary for the Active Choice plugin to display >>>>>> results in a combo-box >>>>>> return image_tag_list.sort() >>>>>> } catch (Exception e) { >>>>>> // handle exceptions like timeout, connection errors, etc. >>>>>> println(e) >>>>>> } >>>>>> >>>>>> However, it just returns Alpine versions. How can I get the CentOS >>>>>> versions? >>>>>> >>>>>> Thanks, >>>>>> Chris >>>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Jenkins Users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/jenkinsci-users/365c1f68-145b-499d-a808-bb8b96351386n%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/jenkinsci-users/365c1f68-145b-499d-a808-bb8b96351386n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> >>>> >>>> -- >>>> Website: http://earl-of-code.com >>>> >>> -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/0e93cfef-1a67-4c09-9a3d-bff24f987014n%40googlegroups.com.
