Updatecli requires a configuration file, or "manifest", which describes the update pipeline. A manifest describes the "what", the "when", and the "where" of the update pipeline.

What

The "what" is the "source" and defines what piece of information we’re looking for, such as the latest application release version, a docker image tag, etc.

When

The "when" is a "condition", if the condition is satisfied then the target is updated.

Where

The "where" is the "target" and defines where we want to update a piece of information like a value from a Dockerfile or YAML file.

Manifest

Root keys

A manifest accepts the following root keys. All of them are optional except name.

KeyTypeDescription

name

string

A short sentence describing the pipeline. It is reused as a default value elsewhere, such as the pull request title, so it should not embed dynamic information like a source output.

pipelineid

string

Identifies a full pipeline run, and groups manifests into the same Git branch and pull request. See Pipeline ID.

id

string

Declares a manifest identifier other manifests can depend on. See manifest order.

dependson

list of string

Lists the manifest id values that must run before this manifest. See manifest order.

labels

map of string

Arbitrary key/value pairs used to filter pipelines at runtime and in reports. See labels.

version

string

The minimum Updatecli version required by the manifest. Updatecli skips the manifest, with an error, when its own version is lower.

options

object

Settings changing how Updatecli behaves for this manifest, as opposed to describing the pipeline itself. See Options.

sources

map

See source.

conditions

map

See condition.

targets

map

See target.

scms

map

Git repository configurations shared by the resources of the manifest. See scm.

actions

map

What to do once a target changed, typically opening a pull request. See action.

autodiscovery

object

Generates pipelines automatically instead of writing them. See autodiscovery.

Note
title and pullrequests are deprecated in favor of name and actions. Updatecli still accepts them but logs a warning, and pullrequests and actions are mutually exclusive.

Pipeline ID

By default, Updatecli treats each manifest file as an independent update pipeline. For reproducibility, it automatically generates a deterministic pipeline ID based on the manifest’s content. This ensures that the same manifest always gets the same pipeline ID across multiple runs.

Updatecli uses this ID in several places, such as the name of the temporary branch it creates when preparing pull requests.

If multiple manifest files share the same pipeline ID (either because they have identical content or because you explicitly set the same pipelineid), they will share the same temporary branch.

updatecli.d/docker.yaml
name: Update Golang Version in Dockerfile
pipelineid: go/version
...
updatecli.d/gomod.yaml
name: Update Golang Version in Go Mod
pipelineid: go/version
...
Important
  • When pipelineid is not set, Updatecli generates one:

    • from a hash of the manifest name, when a name is defined.

    • from a checksum of the whole manifest file, when no name is defined. In that case the ID changes every time the file content changes, and so does the temporary branch name.

      Defining a name (or better, an explicit pipelineid) is therefore the recommended way to keep a stable branch across runs.

  • Since the pipelineid is used in the name of the temporary Git branch, avoid using / in the ID. In Git, / is treated as a directory separator in branch names, which can make branch management confusing.

Manifest Order

When running multiple manifests, Updatecli can order them explicitly with the root keys id and dependson.

Use id to declare a manifest identifier, and dependson to list which manifest IDs must run first. This affects manifest execution order only and does not replace pipelineid.

To learn more, see manifest order.

Options

The options root key groups the settings that change how Updatecli behaves for a manifest, as opposed to the keys describing what the pipeline is made of.

KeyDefaultDescription

relativepaths

workingdirectory

What the relative paths of the manifest resolve against. See Relative paths.

Relative paths

By default, a relative path written in a manifest resolves against the directory Updatecli was started from, not against the manifest that declares it. A manifest stored in updatecli.d/nodejs.yaml and asking for file: package.json therefore reads the package.json of whichever directory you happened to run the command in.

Setting relativepaths to manifest makes those paths resolve against the directory holding the manifest instead, which is what allows a manifest, or a whole directory of them, to be moved, vendored into another repository, or distributed as a policy without rewriting every path.

ValueBehaviour

workingdirectory

Relative paths resolve against the directory Updatecli was started from. This is the default, and the historical behaviour.

manifest

Relative paths resolve against the directory holding the manifest that declares them.

updatecli.yaml
name: Keep the chart image tag in sync

options:
  # "Chart.yaml" and "values.yaml" below are looked up next to this manifest,
  # whatever directory updatecli was started from.
  relativepaths: manifest

sources:
  version:
    name: Read the chart version
    kind: yaml
    spec:
      file: Chart.yaml
      key: $.version

targets:
  tag:
    name: Report it as the image tag
    kind: yaml
    spec:
      file: values.yaml
      key: $.image.tag

The setting applies to the manifest that declares it, so a directory of manifests can be migrated one file at a time. It can also be set for a whole run, with the --relative-paths flag or the UPDATECLI_RELATIVE_PATHS environment variable, which is the practical way to try it on an existing repository:

updatecli diff --relative-paths manifest --config updatecli.d

A manifest declaring options.relativepaths wins over the flag and the environment variable.

Important

relativepaths mostly affects resources that are not attached to an scm.

A source, condition, or target with an scmid resolves its file paths against the working directory of that scm, which is the clone Updatecli made for it. That is unchanged, and is what makes a target committed to the right repository.

The exception is the path of the gittag, gitbranch, and gitcommit resources. With relativepaths: manifest, a relative path resolves from the manifest directory even when the resource has an scmid.

Within a manifest that sets relativepaths: manifest, the manifest directory becomes the base for:

  • the file paths of every resource without an scmid, such as spec.file and spec.files

  • the working directory of the shell resource, spec.workdir

  • a relative directory in an scms entry, and the repository the local scm auto-detects

  • the directory the autodiscovery crawlers scan

Absolute paths are never rewritten, and http:// or https:// locations are always fetched over the network rather than read from disk.

Note
The values, secrets, and manifest files passed on the command line with --values, --secrets, and --config are resolved against the directory Updatecli was started from, whatever relativepaths says. They are arguments to the command, not content of a manifest.
Tip

The default stays workingdirectory on purpose. The most common layout is a updatecli.d/ directory whose manifests reference paths from the root of the repository, and those manifests only work because paths resolve against the working directory. Changing the default would break them, so opting in per manifest is the supported path.

File

Each Updatecli pipeline is defined in its own manifest file. The manifest is split into different stages, "sources", "conditions", "targets", where every stage relies on a plugin to adapt the behavior.

Every manifest is parsed as a Go template first, then as YAML. The following file extensions are accepted:

ExtensionRemark

.yaml, .yml

The most common choice.

.tpl, .tmpl

Same content as a YAML manifest, the extension only signals the templating intent.

.json

JSON is a subset of YAML, so JSON manifests are accepted too.

.cue

CUE manifests, experimental: requires the --experimental flag.

Any other extension is silently ignored, which allows keeping unrelated files next to your manifests in the same directory.

Passing manifests to Updatecli

Manifests are given to the updatecli command using the flag --config (-c). It accepts either a single file or a directory. If a directory is specified, then Updatecli runs recursively on all supported files in that directory.

When --config is not specified, Updatecli looks, in the current directory, for:

  1. a file named updatecli.yaml (plus updatecli.cue in experimental mode)

  2. a directory named updatecli.d

Both are used if both exist. If neither is found, Updatecli falls back to the default autodiscovery crawlers.

Templating values are provided with the following flags:

FlagDescription

--values, -v

A YAML or JSON file containing key/values, repeatable.

--values-inline, -i

An inline YAML or JSON string containing key/values, repeatable.

--secrets

A SOPS encrypted YAML or JSON file, repeatable.

When the same key is defined more than once, the last one wins: values files are merged in order, then secrets files override them, then inline values override everything. The merge is recursive, so two values files can contribute different keys to the same nested object.

Multiple pipelines in a single file

A manifest file may contain several YAML documents separated by ---. Updatecli loads each document as an independent pipeline.

name: Update Golang version in the Dockerfile
sources:
  # ...
---
name: Update Golang version in go.mod
sources:
  # ...
Important
Manifest files starting with an underscore _ are considered as partial files and are not executed. More information on the partial section below.

Partial

Partials are named, reusable fragments of an Updatecli manifest, typically used to define repeatable logic for:

  • Scms (e.g., Git repository details)

  • Sources (e.g., version checks)

  • Conditions

  • Targets

These fragments are automatically available to pipelines within the same directory, helping keep your main manifests DRY (Don’t Repeat Yourself) and maintainable.

A partial file must:

  • have a filename that starts with an underscore (_)

  • use the .yaml or .yml extension

  • live in the same directory as the manifest that uses it. Partials from other directories are ignored, even when Updatecli walks a directory tree.

Updatecli never loads a partial as a standalone manifest.

Important
  • Partial files are prepended to the main manifest before templating, and the result is parsed as a single YAML document. A partial can therefore only define root keys that the main manifest does not already define (a duplicated root key is a YAML error).

  • If a --- YAML document separator is present, the partial feature is effectively disabled, as the resulting content would be treated as multiple separate YAML documents.

updatecli.yaml
autodiscovery:
  groupby: {{ .groupby }}
#{{ if or (.scm.enabled) }}
  scmid: default
  actionid: default
# {{ end }}

  crawlers:
    golang/gomod:

_scm.yaml
# {{ if and (.scm.enabled) ( eq .scm.kind "gitea")) }}
actions:
    default:
        title: 'deps: bump HUGO to {{ source "hugo" }}'
        kind: "gitea/pullrequest"
        scmid: "default"

scms:
    default:
        kind: "gitea"
        spec:
            user: '{{ .scm.user }}'
            # {{ if .scm.email }}
            email: '{{ .scm.email }}'
            # {{ end }}
            owner: '{{ .scm.owner }}'
            repository: '{{ .scm.repository }}'
            token: '{{ .scm.token }}'
            username: '{{ .scm.username }}'
            branch: '{{ .scm.branch }}'
            # {{ if .scm.url }}
            url: '{{ .scm.url }}'
            # {{ end }}
# {{ end }}

Content

Using go templates allows us to specify generic values in a different YAML file, using --values. We then reference those values from each go template.

More information on Go templates is here.

Template functions

On top of the standard Go template functions, a manifest can use:

  • all functions from the Sprig template library

  • the Helm-flavored toYaml, fromYaml, and fromYamlArray functions

  • the Updatecli specific functions described below

FunctionDescription

requiredEnv

Injects an environment variable, and fails the run when the variable is empty or undefined, for example {{ requiredEnv "GITHUB_TOKEN" }}.

source

Injects the output of another source of the same pipeline, for example {{ source "latestVersion" }}.

pipeline

Injects any value from the running pipeline configuration, using a dot separated path, for example {{ pipeline "Sources.latestVersion.Output" }} or {{ pipeline "Name" }}.

Important

source and pipeline are not evaluated when the manifest is loaded (at that point the values do not exist yet). They are re-evaluated during the pipeline run, each time a resource completes, and only then replaced by their value.

As a side effect, {{ source "id" }} also declares an execution dependency: a resource referencing it automatically waits for the source id to run first. See manifest order for details.

Sprig’s env function, on the contrary, is evaluated at load time like the rest of the template.

An example values file can contain:

values.yaml
github:
  token: yourGithubToken

That can used in a pipeline manifest as:

updatecli.yaml
sources:
  sourceid:
    name: Get release version from
    kind: githubRelease
    spec:
      owner: "updatecli"
      repository: "updatecli"
      token: "{{ .github.token }}"
      username: "olblak"
      versionfilter:
        kind: "latest"

conditions:
  conditionID:
    name: Test if version exist
    kind: <resourceType>
    spec:
      <resourceTypeSpec>
targets:
  targetID:
    name: Update version in target1
    kind: <resourceType>
    spec:
      <resourceTypeSpec>

Go Further

  • To know more about Condition syntax condition

  • To know more about Source syntax source

  • To know more about Target syntax target

  • To know more about manifest and resource ordering manifest order

  • To know more about pipeline filtering labels

  • To know more about Plugins

    • More specifically about the source

    • More specifically about the condition

    • More specifically about the target

    • More specifically about the SCM