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support for environmental substitution in config.json using python Template

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refer comment in #35
This commit is contained in:
Arul
2022-11-13 21:37:44 +05:30
parent 7e6d74f1f6
commit a1fa3b9714
5 changed files with 23 additions and 7 deletions
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14
README.md
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@@ -213,9 +213,19 @@ Do not include the base domain name in your `subdomains` config. Do not use the
}
```
### 🗣️ Call to action: Docker environment variable support
### Docker environment variable support
I am looking for help adding Docker environment variable support to this project. If interested, check out [this comment](https://github.com/timothymiller/cloudflare-ddns/pull/35#issuecomment-974752476) and open a PR.
Define environmental variables starts with `CF_DDNS_` and use it in config.json
For ex:
```json
{
"cloudflare": [
{
"authentication": {
"api_token": "${CF_DDNS_API_TOKEN}",
```
## 🐳 Deploy with Docker Compose

7
cloudflare-ddns.py
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@@ -8,6 +8,8 @@
__version__ = "1.0.2"
from string import Template
import json
import os
import signal
@@ -17,7 +19,8 @@ import time
import requests
CONFIG_PATH = os.environ.get('CONFIG_PATH', os.getcwd())
# Read in all environment variables that have the correct prefix
ENV_VARS = {key: value for (key, value) in os.environ.items() if key.startswith('CF_DDNS_')}
class GracefulExit:
def __init__(self):
@@ -216,7 +219,7 @@ if __name__ == '__main__':
config = None
try:
with open(os.path.join(CONFIG_PATH, "config.json")) as config_file:
config = json.loads(config_file.read())
config = json.loads(Template(config_file.read()).safe_substitute(ENV_VARS))
except:
print("😡 Error reading config.json")
# wait 10 seconds to prevent excessive logging on docker auto restart

3
scripts/docker-build-all.sh
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@@ -1,3 +1,4 @@
#!/bin/bash
docker buildx build --platform linux/ppc64le,linux/s390x,linux/386,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/amd64 --tag timothyjmiller/cloudflare-ddns:latest ../
BASH_DIR=$(dirname $(realpath "${BASH_SOURCE}"))
docker buildx build --platform linux/ppc64le,linux/s390x,linux/386,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/amd64 --tag timothyjmiller/cloudflare-ddns:latest ${BASH_DIR}/../
# TODO: Support linux/riscv64

3
scripts/docker-build.sh
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@@ -1,2 +1,3 @@
#!/bin/bash
docker build --platform linux/amd64 --tag timothyjmiller/cloudflare-ddns:latest ../
BASH_DIR=$(dirname $(realpath "${BASH_SOURCE}"))
docker build --platform linux/amd64 --tag timothyjmiller/cloudflare-ddns:latest ${BASH_DIR}/../

3
scripts/docker-publish.sh
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@@ -1,2 +1,3 @@
#!/bin/bash
docker buildx build --platform linux/ppc64le,linux/s390x,linux/386,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/amd64 --tag timothyjmiller/cloudflare-ddns:latest --push ../
BASH_DIR=$(dirname $(realpath "${BASH_SOURCE}"))
docker buildx build --platform linux/ppc64le,linux/s390x,linux/386,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/amd64 --tag timothyjmiller/cloudflare-ddns:latest --push ${BASH_DIR}/../