ReplacementNameTemplate fails to add prefix to Docker images

[adrianmace]

What would you like help with?

I think I found a bug

How are you running Renovate?

Self-hosted

If you're self-hosting Renovate, tell us which platform (GitHub, GitLab, etc) and which version of Renovate.

GitHub Enterprise

Please tell us more about your question or problem

I am attempting to add a registry prefix all of my docker image references (docker.io/ or docker.io/library/) so that we can simplify other rules and be explicit about where our images are being pulled from.

renovate.json5

{
  $schema: "https://docs.renovatebot.com/renovate-schema.json",
  extends: [
    "config:base",
    ":automergeMinor",
    ":automergeDigest",
  ],
  platformAutomerge: true,
  "packageRules": [
    {
      "description": "official images",
      "matchDatasources": ["docker"],
      "matchPackagePatterns": ["^[a-z-]+$"],
      "replacementNameTemplate": "docker.io/library/{{{packageName}}}",
    },
    {
      "description": "non-official images",
      "matchDatasources": ["docker"],
      "matchPackagePatterns": ["^[a-z-]+/[a-z-]+$"],
      "replacementNameTemplate": "docker.io/{{{packageName}}}",
    }
  ]
}

Example: script.sh

#!/usr/bin/env bash

set -euo pipefail

docker run --rm -it realestate/stackup:1.8.1

The configuration is exactly as specified in the second example here. It looks like although the package name may be changing, the depName is not so it is breaking and getting confused - despite the PR title being computed correctly.

Relevant logs have been included.

Logs (if relevant)

Logs

Found dockerfile package files
Found regex package files
Found 3 package file(s)
Dependency extraction complete
Dependency realestate/stackup has unsupported/unversioned value latest (versioning=docker)
Skipping realestate/stackup because no currentDigest or pinDigests
Dependency realestate/stackup has unsupported/unversioned value latest (versioning=docker)
Skipping realestate/stackup because no currentDigest or pinDigests
PackageFiles.add() - Package file saved for base branch
Package releases lookups complete
branchifyUpgrades
detectSemanticCommits()
getCommitMessages
semanticCommits: detected "angular"
semanticCommits: enabled
3 flattened updates found: realestate/stackup, realestate/stackup, realestate/stackup
Returning 1 branch(es)
config.repoIsOnboarded=true
packageFiles with updates
detectSemanticCommits()
semanticCommits: returning "enabled" from cache
processRepo()
Processing 1 branch: renovate/realestate-stackup-replacement
Calculating hourly PRs remaining
currentHourStart=2024-03-28T00:00:00.000+00:00
PR hourly limit remaining: 2
Calculating prConcurrentLimit (10)
getBranchPr(renovate/realestate-stackup-replacement)
findPr(renovate/realestate-stackup-replacement, undefined, open)
findPr(renovate/realestate-stackup-replacement, undefined, closed)
0 PRs are currently open
PR concurrent limit remaining: 10
Calculated maximum PRs remaining this run: 2
PullRequests limit = 2
Calculating hourly PRs remaining
currentHourStart=2024-03-28T00:00:00.000+00:00
PR hourly limit remaining: 2
Calculating branchConcurrentLimit (10)
0 already existing branches found: 
Branch concurrent limit remaining: 10
Calculated maximum branches remaining this run: 2
Branches limit = 2
syncBranchState()
syncBranchState(): Branch cache not found, creating minimal branchState
getBranchPr(renovate/realestate-stackup-replacement)
findPr(renovate/realestate-stackup-replacement, undefined, open)
findPr(renovate/realestate-stackup-replacement, undefined, closed)
branchExists=false
dependencyDashboardCheck=undefined
Check for closed PR because recreating closed PRs is disabled.
findPr(renovate/realestate-stackup-replacement, chore(deps): replace realestate/stackup docker tag with docker.io/realestate/stackup 1.8.1, !open)
prAlreadyExisted=false
Checking schedule(at any time, Australia/Melbourne)
No schedule defined
Branch needs creating
Using reuseExistingBranch: false
Setting current branch to main
latest commit
manager.getUpdatedPackageFiles() reuseExistingBranch=false
Starting search at index 60
Found match at index 60
depName is not updated
Error updating branch: update failure

[github-actions[bot]]

Hi there,

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To get started, please read our guide on creating a minimal reproduction.

Good luck,

The Renovate team