badblocks/docker-easy-haproxy
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Renaming docker environment variables.

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This commit is contained in:
Joao M 2022-08-13 17:29:07 +00:00
parent 4a1c36d003
commit a457297c5f
8 changed files with 25 additions and 23 deletions
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2
Dockerfile
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@ -1,4 +1,4 @@
FROM alpine:3.14 FROM alpine:3.16
WORKDIR /scripts WORKDIR /scripts

27
README.md
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@ -24,7 +24,7 @@ The basic command line to run is:
docker run -d \ docker run -d \
--name easy-haproxy-container \ --name easy-haproxy-container \
-v /var/run/docker.sock:/var/run/docker.sock \ -v /var/run/docker.sock:/var/run/docker.sock \
-e DISCOVER="swarm|docker|static" \ -e EASYHAPROXY_DISCOVER="swarm|docker|static" \
# + Environment Variables \ # + Environment Variables \
# + ports mapped to the host \ # + ports mapped to the host \
byjg/easy-haproxy byjg/easy-haproxy
@ -34,18 +34,18 @@ The mapping to `/var/run/docker.sock` is necessary to discover the docker contai
The environment variables will setup the HAProxy. The environment variables will setup the HAProxy.
| Environment Variable | Description | | Environment Variable | Description |
|----------------------|-------------------------------------------------------------------------------| |--------------------------|-------------------------------------------------------------------------------|
| DISCOVER | How `haproxy.cfg` will be created: `static`, `docker` or `swarm` | | EASYHAPROXY_DISCOVER | How `haproxy.cfg` will be created: `static`, `docker` or `swarm` |
| LOOKUP_LABEL | (Optional) The key will search to match resources. Default: `easyhaproxy`. | | EASYHAPROXY_LABEL_PREFIX | (Optional) The key will search to match resources. Default: `easyhaproxy`. |
| HAPROXY_USERNAME | (Optional) The HAProxy username to the statistics. Default: `admin` | | HAPROXY_USERNAME | (Optional) The HAProxy username to the statistics. Default: `admin` |
| HAPROXY_PASSWORD | The HAProxy password to the statistics. If not set disable stats. | | HAPROXY_PASSWORD | The HAProxy password to the statistics. If not set disable stats. |
| HAPROXY_STATS_PORT | (Optional) The HAProxy port to the statistics. Default: `1936` | | HAPROXY_STATS_PORT | (Optional) The HAProxy port to the statistics. Default: `1936` |
| HAPROXY_CUSTOMERRORS | (Optional) If HAProxy will use custom HTML errors. true/false. Default: false | | HAPROXY_CUSTOMERRORS. | (Optional) If HAProxy will use custom HTML errors. true/false. Default: false |
The environment variable `DISCOVER` will define where is located your containers (see below more details): The environment variable `EASYHAPROXY_DISCOVER` will define where is located your containers (see below more details):
- docker - docker
- swarm - swarm
- static - static
@ -54,7 +54,7 @@ The environment variable `DISCOVER` will define where is located your containers
Easy HAProxy can discover automatically the container services running in the same network of Docker or in a Docker Swarm cluster. Easy HAProxy can discover automatically the container services running in the same network of Docker or in a Docker Swarm cluster.
### DISCOVER: docker ### EASYHAPROXY_DISCOVER: docker
This method will use a regular docker installation to discover the containers and configure the HAProxy. This method will use a regular docker installation to discover the containers and configure the HAProxy.
@ -72,7 +72,7 @@ docker run --network easyhaproxy byjg/easyhaproxy
docker run --network easyhaproxy myimage docker run --network easyhaproxy myimage
``` ```
### DISCOVER: swarm ### EASYHAPROXY_DISCOVER: swarm
This method requires a functional Docker Swarm Cluster. The system will search for the labels in all containers on all This method requires a functional Docker Swarm Cluster. The system will search for the labels in all containers on all
swarm nodes. swarm nodes.
@ -138,7 +138,6 @@ Used to pass on SSL-termination to a backend:
```bash ```bash
docker run \ docker run \
-l easyhaproxy.defintions=example \
-l easyhaproxy.example.mode=tcp \ -l easyhaproxy.example.mode=tcp \
-l easyhaproxy.example.health-check=ssl \ -l easyhaproxy.example.health-check=ssl \
-l easyhaproxy.example.port=443 -l easyhaproxy.example.port=443
@ -155,7 +154,7 @@ docker run \
-l easyhaproxy.[definition].redirect=www.byjg.com.br--http://byjg.com.br,byjg.com--http://byjg.com.br -l easyhaproxy.[definition].redirect=www.byjg.com.br--http://byjg.com.br,byjg.com--http://byjg.com.br
``` ```
## DISCOVER: static ## EASYHAPROXY_DISCOVER: static
This method expects a YAML file to setup the `haproxy.cfg` This method expects a YAML file to setup the `haproxy.cfg`

4
assets/scripts/haproxy-reload.sh
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@ -4,7 +4,7 @@ cd /scripts
RELOAD="true" RELOAD="true"
if [[ "$DISCOVER" == "static" ]]; then if [[ "$EASYHAPROXY_DISCOVER" == "static" ]]; then
CONTROL_FILE="/etc/haproxy/haproxy.cfg" CONTROL_FILE="/etc/haproxy/haproxy.cfg"
touch ${CONTROL_FILE} touch ${CONTROL_FILE}
cp ${CONTROL_FILE} ${CONTROL_FILE}.old cp ${CONTROL_FILE} ${CONTROL_FILE}.old
@ -15,7 +15,7 @@ else
mv ${CONTROL_FILE} ${CONTROL_FILE}.old mv ${CONTROL_FILE} ${CONTROL_FILE}.old
touch ${CONTROL_FILE} touch ${CONTROL_FILE}
if [[ "$DISCOVER" == "docker" ]]; then if [[ "$EASYHAPROXY_DISCOVER" == "docker" ]]; then
CONTAINERS=$(docker ps -q) CONTAINERS=$(docker ps -q)
LABEL_PATH=".Config.Labels" LABEL_PATH=".Config.Labels"

2
assets/scripts/swarm.py
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@ -16,7 +16,7 @@ if os.getenv("HAPROXY_PASSWORD"):
"port": os.getenv("HAPROXY_STATS_PORT") if os.getenv("HAPROXY_STATS_PORT") else "1936", "port": os.getenv("HAPROXY_STATS_PORT") if os.getenv("HAPROXY_STATS_PORT") else "1936",
} }
result["lookup_label"] = os.getenv("LOOKUP_LABEL") if os.getenv("LOOKUP_LABEL") else "easyhaproxy" result["lookup_label"] = os.getenv("EASYHAPROXY_LABEL_PREFIX") if os.getenv("EASYHAPROXY_LABEL_PREFIX") else "easyhaproxy"
cfg = HaproxyConfigGenerator(result) cfg = HaproxyConfigGenerator(result)
print(cfg.generate(lineList)) print(cfg.generate(lineList))

4
examples/docker/docker-compose-changed-label.yml
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@ -12,8 +12,8 @@ services:
volumes: volumes:
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
environment: environment:
DISCOVER: docker EASYHAPROXY_DISCOVER: docker
LOOKUP_LABEL: haproxy EASYHAPROXY_LABEL_PREFIX: haproxy
HAPROXY_CUSTOMERRORS: "true" HAPROXY_CUSTOMERRORS: "true"
HAPROXY_USERNAME: admin HAPROXY_USERNAME: admin
HAPROXY_PASSWORD: password HAPROXY_PASSWORD: password

2
examples/docker/docker-compose-multi-containers.yml
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@ -15,7 +15,7 @@ services:
volumes: volumes:
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
environment: environment:
DISCOVER: docker EASYHAPROXY_DISCOVER: docker
HAPROXY_CUSTOMERRORS: "true" HAPROXY_CUSTOMERRORS: "true"
HAPROXY_USERNAME: admin HAPROXY_USERNAME: admin
HAPROXY_PASSWORD: password HAPROXY_PASSWORD: password

2
examples/docker/docker-compose.yml
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@ -12,7 +12,7 @@ services:
volumes: volumes:
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
environment: environment:
DISCOVER: docker EASYHAPROXY_DISCOVER: docker
HAPROXY_CUSTOMERRORS: "true" HAPROXY_CUSTOMERRORS: "true"
HAPROXY_USERNAME: admin HAPROXY_USERNAME: admin
HAPROXY_PASSWORD: password HAPROXY_PASSWORD: password

5
examples/static/docker-compose.yml
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@ -1,3 +1,6 @@
# To test:
# curl -k -H "Host: host1.local" https://127.0.0.1/
version: "3" version: "3"
services: services:
@ -8,7 +11,7 @@ services:
- ./host1.local.pem:/etc/certs/host1.local.pem - ./host1.local.pem:/etc/certs/host1.local.pem
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
environment: environment:
DISCOVER: static EASYHAPROXY_DISCOVER: static
ports: ports:
- "80:80/tcp" - "80:80/tcp"
- "443:443/tcp" - "443:443/tcp"