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Add docker build instructions #252

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Add docker build instructions #252

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55c7723
Add docker build instructions
fgervais Feb 6, 2022
cd94f25
Change docker build title
fgervais Feb 9, 2022
c1742cb
Use a more precise description
fgervais Feb 9, 2022
1218cb4
Match the normal build's wording
fgervais Feb 9, 2022
c83baab
Link to Nordic's docker build guide
fgervais Feb 9, 2022
0b678ce
Change how the NCS link is provided
fgervais Feb 9, 2022
4436156
Remove link duplicate
fgervais Feb 9, 2022
50ac2a2
Add docker build instructions to nrf52811 and nrf52833
fgervais Feb 9, 2022
c84e495
Change incorrect build target
fgervais Feb 9, 2022
12504c1
Change text to match command
fgervais Feb 9, 2022
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22 changes: 22 additions & 0 deletions src/nrf52840/README.md
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Expand Up @@ -60,6 +60,28 @@ After a successful build, the `elf` files can be found in `<path-to-ot-nrf528xx>
$ arm-none-eabi-objcopy -O ihex build/bin/ot-cli-ftd ot-cli-ftd.hex
```

### Alternative build using Docker
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Alternatively, it's possible to build using a Docker image.
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This can be useful in case of CI/CD builds or to build locally without installing the dependencies.
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What is CI/CD in this case? Do the abbreviations need to be opened?

Are there downsides? For example, is the user foregoing all the support options (USB CDC ACM support, Bootloader support, and so on)?

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I meant to say when building in a pipeline in the cloud, most of the time the build agent will run some generic OS and the build agent can be instructed to run our pipeline script in a specific container image.

In this case, building through the docker image can help better control the build environment over time and give better odds of a build not failing if the cloud provider updates the VM environment.

I don't know of any downsides but my tests were limited to the sample build I provided as an example in the PR description.

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Alright, that sounds good and doesn't necessitate any more clarification, I think.


Example for the nRF52840 dongle:

```bash
cd <path-to-ot-nrf528xx>
docker run --rm -u $(id -u):$(id -g) -v $(pwd):/workdir/project coderbyheart/fw-nrfconnect-nrf-docker:v1.8-branch ./script/build nrf52840 USB_trans -DOT_BOOTLOADER=USB -DOT_THREAD_VERSION=1.2
```

Then `elf` files can be converted through the same container image.
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For example:

```bash
cd <path-to-ot-nrf528xx>
docker run --rm -u $(id -u):$(id -g) -v $(pwd):/workdir/project coderbyheart/fw-nrfconnect-nrf-docker:v1.8-branch arm-none-eabi-objcopy -O ihex build/bin/ot-rcp build/bin/ot-rcp.hex
```

### USB CDC ACM support

You can build the libraries with support for the native USB CDC ACM as a serial transport. To do so, build the firmware with the following parameter:
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