function "lookup" not defined #5032

davejhahn · 2021-01-14T21:50:27Z

Which chart:
Latest (1/14/2021)

Describe the bug
Error: parse error at (zookeeper/charts/common/templates/_secrets.tpl:82): function "lookup" not defined

To Reproduce
Deploy helm chart

Additional context
I just deployed yesterday and didn't have any issues. After getting this error, I forced version 6.0.0 of the Helm Chart and it worked. Not sure if something is wrong with the helm chart or if there are some breaking changes?

rafariossaa · 2021-01-15T09:20:58Z

Hi,
I could not reproduce the issue.
Could you indicate how you deployed the chart ?
I tried using directly the bitnami chart and also cloning the repo and I couldn't get the issue reproduced.

Using the repo:

$ git clone https://github.com/bitnami/charts
$ cd charts/bitnami/zookeeper/
$ helm dependency update
$ helm install myzk -f values.yaml .

Using the chart:

$ helm install myzk2 bitnami/zookeeper

Deployed charts:

$ helm list
NAME    NAMESPACE       REVISION        UPDATED                                 STATUS          CHART           APP VERSION
myzk    default         1               2021-01-15 10:13:49.840385116 +0100 CET deployed        zookeeper-6.3.1 3.6.2      
myzk2   default         1               2021-01-15 10:14:52.623498088 +0100 CET deployed        zookeeper-6.3.1 3.6.2    ```

travisjeffery · 2021-01-17T09:35:33Z

I'm getting the same issue with external-dns, I'm using microk8s' helm3 which is this version:

; microk8s.helm3 version
version.BuildInfo{Version:"v3.0.2", GitCommit:"19e47ee3283ae98139d98460de796c1be1e3975f", GitTreeState:"clean", GoVersion:"go1.13.5"}

Trying to install the latest 4.5.3 version which supposedly fixes a breaking change with backwards compability: https://github.com/bitnami/charts/tree/master/bitnami/common.

travisjeffery · 2021-01-17T09:36:24Z

Ah, looks like this it's this 14a0042#r46011226

rafariossaa · 2021-01-18T15:03:13Z

Hi,
It seems that PR #5056 by @Cellebyte was mereged yesterday. Could you give it a try ?

FraPazGal · 2021-01-18T17:59:23Z

Hello @travisjeffery @davejhahn,

After investigating the error, we found out that it should be related to the used Helm version. It seems Helm 3.0 is reporting issues with the lookup function even if it isn't being used by the chart. While we work on a fix, could you try installing the chart with Helm version 3.1 or a superior one?

travisjeffery · 2021-01-18T19:17:35Z

@FraPazGal in my situation I can't because it's the version microk8s uses, they'd have to upgrade.

travisjeffery · 2021-01-18T19:55:48Z

Yeah looks like I'm still getting the lookup issue with latest external-dns.

Cellebyte · 2021-01-18T21:36:39Z

@travisjeffery could you try to manually update?
Currently version 1.3.2 is used. The fix is available in 1.3.5 of the common lib

travisjeffery · 2021-01-19T02:51:16Z

I'm pretty sure I had the lock saying 1.3.5 at one point and it still wasn't working, I could be wrong but I can't check now. I had to pin to 4.5.1 and move on.

FraPazGal · 2021-01-20T12:13:04Z

Hello,

Yes, the issue comes from the current Helm version used. We have decided to bump the minimum Helm version to 3.1 so that new functionalities can be added to our charts. We understand this may inconvenience some users but opted for this solution to maintain our products up-to-date and benefitting from the newer features. For more information, please check #5091

donofriov · 2021-02-18T13:04:24Z

I'm on helm 3.5.2 and still getting the error:

external-dns.yaml
---
apiVersion: helm.fluxcd.io/v1
kind: HelmRelease
metadata:
  name: external-dns
  namespace: kube-system
  annotations:
    fluxcd.io/ignore: "false"
spec:
  releaseName: external-dns
  chart:
    repository: https://charts.bitnami.com/bitnami
    name: external-dns
    version: 4.8.0
...

❯ kubectl apply -f clusters/eks-useast1-nonprod-02/kube-system/external-dns.yaml
helmrelease.helm.fluxcd.io/external-dns configured

❯ kubectl get helmrelease
NAME           RELEASE        STATUS     MESSAGE                                                                                                                                                    AGE
external-dns   external-dns   deployed   failed to upgrade chart for release [external-dns]: parse error at (external-dns/charts/common/templates/_secrets.tpl:84): function "lookup" not defined   308d

❯ helm version
version.BuildInfo{Version:"v3.5.2", GitCommit:"167aac70832d3a384f65f9745335e9fb40169dc2", GitTreeState:"dirty", GoVersion:"go1.15.7"}

❯ fluxctl version
1.21.2

Is there anything else that I need to update?

Cellebyte · 2021-02-18T16:45:48Z

@donofriov just check which common version is deployed.

donofriov · 2021-02-18T18:34:22Z

@Cellebyte How can I do that? I thought common was included with the external-dns install as a dependency?

I tried adding the latest common dependency but still getting an error

❯ kubectl get helmrelease
NAME           RELEASE   STATUS   MESSAGE                                                                                                                                                    AGE
external-dns                      failed to upgrade chart for release [external-dns]: parse error at (external-dns/charts/common/templates/_secrets.tpl:84): function "lookup" not defined   62s

apiVersion: helm.fluxcd.io/v1
kind: HelmRelease
metadata:
  name: external-dns
  namespace: kube-system
  annotations:
    fluxcd.io/ignore: "false"
spec:
  releaseName: external-dns
  chart:
    repository: https://charts.bitnami.com/bitnami
    name: external-dns
    version: 4.8.0
    dependencies:
    - name: common
      version: 1.3.9
      repository: https://charts.bitnami.com/bitnami

Cellebyte · 2021-02-18T18:44:44Z

@donofriov just download the helm chart manually from here -> https://charts.bitnami.com/bitnami/external-dns-4.8.0.tgz
and verify that the common version is greater than 1.3.5 also verify that your helm version is greater than 3.1

rafariossaa · 2021-02-19T11:23:18Z

Hi,
@Cellebyte , thanks for helping other users with the issue !
@donofriov Did that worked for you ?

donofriov · 2021-02-19T11:45:54Z

Yea definitely thanks for the help @Cellebyte unfortunately I wasn't able just to update the bitnami versions because we are also using flux (v1). I just updated to the latest flux deployment (1.21.2) and flux helm-operator deployment (1.2.0) and that actually resolved the issue. Now i'm able to use external-dns 4.8.0 and common 1.3.9 without any errors, specifically the lookup function missing.

Thanks for following up @rafariossaa

Cellebyte · 2021-02-19T12:15:46Z

@donofriov Nice that it is now working :)

rafariossaa · 2021-02-22T11:11:41Z

Should I process to close this issue ?

Dhinesh-ATCI · 2021-03-01T13:31:43Z

Hello ,
I am facing the same Issue for deploying the external-dns through flux . With the Error message as

Warning FailedReleaseSync 3s (x3 over 4m35s) helm-operator synchronization of release 'external-dns' in namespace 'clust-mgmt' failed: installation failed: parse error in "external-dns/charts/common/templates/_secrets.tpl": template: external-dns/charts/common/templates/_secrets.tpl:84: function "lookup" not defined

I have external-dns - 4.8.4 and common - 1.4.1

Is this issue resolve for lookup function .

Cellebyte · 2021-03-01T13:35:39Z

@Dhinesh-ATCI <- please update your flux it is using probably an old helm version.

Dhinesh-ATCI · 2021-03-01T15:02:21Z

Thanks @Cellebyte . My flux was deploying a helm-operator with version v2 as default and when I changed to v3 it is working good and I able to view the external-dns deployment now .

marcosbc · 2021-03-02T16:33:36Z

Since it seems to be working now, I'm closing this issue.

FraPazGal mentioned this issue Jan 20, 2021

I am getting an error while installing the minio chart #5152

Closed

andresbono mentioned this issue Jan 25, 2021

MYSQL Helm chart - function "lookup" not defined #5205

Closed

marcosbc closed this as completed Mar 2, 2021

sofusalbertsen mentioned this issue May 19, 2021

bump helm version to more than 3 eficode-academy/helm-katas#24

Closed

klingerr mentioned this issue Jun 11, 2021

K8SSAND-571 ⁃ function "lookup" not defined due to bitnami/common version k8ssandra/k8ssandra#882

Closed

mehta-ankit mentioned this issue Oct 27, 2021

Error: parse error at (jaeger/charts/common/templates/_secrets.tpl:84): function "lookup" not defined jaegertracing/helm-charts#303

Closed

joeholley added a commit to joeholley/open-match that referenced this issue Jul 4, 2023

Bump helm version to remove lookup error bitnami/charts#5032

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function "lookup" not defined #5032

function "lookup" not defined #5032

davejhahn commented Jan 14, 2021

rafariossaa commented Jan 15, 2021

travisjeffery commented Jan 17, 2021

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marcosbc commented Mar 2, 2021

function "lookup" not defined #5032

function "lookup" not defined #5032

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