* Disable double-rendering in V1
We are going to force users to separate environments and releases sections in every helmfile.yaml in the [Helmfile V1](https://github.com/helmfile/helmfile/blob/main/docs/proposals/towards-1.0.md). The goal of separation was to make the helmfile.yaml rendering result not dependent on the double-rendering and therefore the feature should be safe to be turned off in V1.
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
* Fix helmfile template rendering error log for v1
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
* Add test for helmfile template debug log differences between v0 and v1 modes
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
* Fix helmfile template render debug log to not mention "first-pass" in v1 mode
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
The go-getter driver (named `Remote`) is used to implement remote values. I found some unused functions in its implementation. This commit removes those unused functions so that it becomes more maintainable.
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Ref https://github.com/helmfile/helmfile/discussions/593
* implemented --reset-values flag overriding .helmDefaults.reuseValues=true
* tests for --reset-values flag
* fixed pkg/app tests
* added tests for both reset & reuse flags given
* added appendValuesControlMode method for --reuse/reset-values flag processing
* updated code comments & docs
Signed-off-by: Karol Ossowski <k@koralsky.pl>
This should fix#435 for Helmfile v0.x releases since the next v0.150.0.
We introduce a new envvar to opt-in to the new YAML library, so that you can give it a shot before upgrading your Helmfile to v1. The same envvar can be used to opt-out of the new YAML library after you upgrade to Helmfile v1, giving you a more flexible migration story.
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Previously a values template rendering failure resulted in a cryptic error message like:
```
g release templates in "input.yaml": failed executing templates in release "input.yaml"."foo1": failed executing template expressions in release "foo1".values[0] = "[98 97 115 101 76 97 98 101 108 58 32 34 123 123 32 103 101 116 32 46 82 101 108 101 97 115 101 46 76 97 98 101 108 115 32 92 34 98 97 115 101 92 34 32 92 34 78 79 84 95 73 78 72 69 82 73 84 69 68 92 34 32 125 125 34 10]": template: stringTemplate:1: unexpected "\\" in operand
```
The issue was that the values template at the value position of the YAML dict was printed as a formatted byte array. We now print it as a standard string so that it is easily readable.
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
This is a successor to #596. We need a smooth migration path from `gopkg.in/yaml.v2`, and this pull request moves it forward with `goccy/go-yaml` instead of `gopkg.in/yaml.v3`. Merging this unblocks users stuck in Helmfile v0.146.x or earlier due to #435, so that they can upgrade to 0.147.x or greater without updating their helmfile configs.
We previously tried to upgrade to `yaml.v3` (https://github.com/helmfile/helmfile/issues/394) in Helmfile v0.x, presuming it won't break anything. Apparently, it broke use-cases where you want to layer release's `values` field over three or more release templates and releases (#435).
We then tried to bring back `yaml.v2` for Helmfile v0.x and keep `yaml.v3` for the upcoming Helmfile v1. However, it failed due to incompatibility in the Unmarshaller interface between `yaml.v2` and `yaml.v3` (https://github.com/helmfile/helmfile/pull/596).
`goccy/go-yaml` is, from my observation, a well-maintained alternative to `yaml.v2`. One of its premises is that it enables us to swap the implementation from `gopkg.in/yaml.v2` to `goccy/go-yaml` just by replacing the import directive. It seems to use the same `Unmarshaller` interface as yaml.v2 too.
Once this PR gets merged, I'd like to follow-up with adding a new build-time variable and an envvar to set the proper default for the yaml parser Helmfile uses and the ability to switch the parser at runtime. All in all, the next Helmfile release, v0.150.0 will get reverted to use `gopkg.in/yaml.v2` by default which resolves#435.
New users who started using Helmfile since any of v0.148.0, v0.148.1, and v0.149.0 might be already relying on the new behavior, They might need to specify a new envvar to enable `goccy/go-yaml`.
Signed-off-by: yxxhero <aiopsclub@163.com>
Signed-off-by: yxxhero <aiopsclub@163.com>
Co-authored-by: yxxhero <aiopsclub@163.com>
This is a successor to #442 rebuilt on top of #594 so that we can merge this while we are still at Hemlfile v0.x without worrying any backward-incompatibility.
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
This is a successor to #440 rebuilt on top of #594 so that we can merge this while we are still at Hemlfile v0.x without worrying any backward-incompatibility. Much appreciation to @yxxhero for the original work!
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
* feat: Helmfile V1 mode
We add a new "V1 mode" to Helmfile so that you can seemlessly upgrade Helmfile from the current v0.x to the upcoming v1.0.
The idea is that we build both v0 and v1 binaries from the same tagged commit within the main branch, with different defaults for the "V1 mode"- the V1 mode is disabled by default for v0.x binaries, while it is enabled by default for v1.x binaries.
The V1 mode can be overrode at runtime via envvar. That is, even after upgrading the binary to v1, you will not see any backward-incompatible changes while you explicitly set an envvar, `HELMFILE_V1MODE=true`, at runtime.
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Signed-off-by: yxxhero <aiopsclub@163.com>
yxxhero