# \[Docker\] unable to find valid certification path to requested target

**URL:** <https://forum.inductiveautomation.com/t/docker-unable-to-find-valid-certification-path-to-requested-target/92400>\
**Category:** Ignition\
**Created:** [June 26, 2024, 2:33pm UTC](https://forum.inductiveautomation.com/t/docker-unable-to-find-valid-certification-path-to-requested-target/92400 "2024-06-26T14:33:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jae\_No](https://avatars.discourse-cdn.com/v4/letter/j/a183cd/32.png) [@Jae\_No](https://forum.inductiveautomation.com/u/Jae_No)\
**Post date:** [June 26, 2024, 2:33pm UTC](https://forum.inductiveautomation.com/t/docker-unable-to-find-valid-certification-path-to-requested-target/92400/1 "2024-06-26T14:33:58Z")

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I am running ignition gateway as docker container and it is acting as client to communicate with external services.

When i run the gateway locally, I was able to avoid the error, "unable to find valid certification path to requested target" by placing a certificate to /ignition/data/certificates/supplemental.

Same for the docker container, I placed the certificate inside of the docker container /usr/local/bin/ignition/data/certificates/supplemental.

But, it gives an error...

Thank you for the help

---

<div class="post-metadata">

**Author:** ![kcollins](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kcollins/32/19646_2.png) [@kcollins](https://forum.inductiveautomation.com/u/kcollins)\
**Post date:** [June 27, 2024, 1:40pm UTC](https://forum.inductiveautomation.com/t/docker-unable-to-find-valid-certification-path-to-requested-target/92400/2 "2024-06-27T13:40:44Z")

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Upon starting the gateway, you should see feedback in the logs for the loading of your supplemental certificates into the trust store.

If successful, you should see something like:

```python
Certificate Added to trust store: ...

```

Otherwise you should get a warning with more details:

```python
Unable to add certificate xxxxx to trust store, ...

```

If you see neither of these related to your certificate, double check your placement--you've got the right folder though, `/usr/local/bin/ignition/data/certificates/supplemental`.