badblocks/docker-easy-haproxy
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Find definitions dynamically

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This commit is contained in:
Joao M 2022-08-12 14:49:48 +00:00
parent c62834c52b
commit 4a1c36d003
9 changed files with 37 additions and 36 deletions
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25
README.md
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@ -83,16 +83,15 @@ Important: easyhaproxy needs to be in the same network of the containers or othe
### Tags to be attached in the Docker Container (Swarm or Docker)
| Tag | Description | Example |
|------------------------------------|---------------------------------------------------------------------------------------------------------|--------------|
| easyhaproxy.definitions | A Comma delimited list with the definitions. Each name requires the definition of the parameters below. | service,service2 |
| easyhaproxy.[definition].mode | (Optional) Is this `http` or `tcp` mode in HAProxy. (Defaults to http) | http |
| easyhaproxy.[definition].port | (Optional) What is the port that the HAProxy will listen to. (Defaults to 80) | 80 |
| easyhaproxy.[definition].localport | (Optional) What is the port that the container is listening. (Defaults to 80) | 8080 |
| easyhaproxy.[definition].host | What is the host that the HAProxy will listen to. | somehost.com |
| easyhaproxy.[definition].redirect | (Optional) Host redirects from connections in the port defined above. | foo.com--https://bla.com,bar.com--https://bar.org |
| easyhaproxy.[definition].sslcert | (Optional) Cert PEM Base64 encoded. | |
| easyhaproxy.[definition].health-check | (Optional) `ssl`, enable health check via SSL in `mode tcp` (Defaults to "empty") | |
| Tag | Description | Example |
|---------------------------------------|---------------------------------------------------------------------------------------------------------|--------------|
| easyhaproxy.[definition].mode | (Optional) Is this `http` or `tcp` mode in HAProxy. (Defaults to http) | http |
| easyhaproxy.[definition].port | (Optional) What is the port that the HAProxy will listen to. (Defaults to 80) | 80 |
| easyhaproxy.[definition].localport. | (Optional) What is the port that the container is listening. (Defaults to 80) | 8080 |
| easyhaproxy.[definition].host | What is the host that the HAProxy will listen to. | somehost.com |
| easyhaproxy.[definition].redirect | (Optional) Host redirects from connections in the port defined above. | foo.com--https://bla.com,bar.com--https://bar.org |
| easyhaproxy.[definition].sslcert | (Optional) Cert PEM Base64 encoded. | |
| easyhaproxy.[definition].health-check | (Optional) `ssl`, enable health check via SSL in `mode tcp` (Defaults to "empty") | |
### Defining the labels in Docker Swarm
@ -103,7 +102,8 @@ services:
foo:
deploy:
labels:
easyhaproxy.definitions: "service1,service2"
easyhaproxy.my.host: "www.example.org"
easyhaproxy.my.localport: 8080
...
```
@ -112,7 +112,6 @@ services:
```bash
docker run \
-l easyhaproxy.definitions=webapi \
-l easyhaproxy.webapi.port=80\
-l easyhaproxy.webapi.host=byjg.com.br \
....
@ -122,8 +121,6 @@ docker run \
```bash
docker run \
-l easyhaproxy.definitions=express,admin \
-l easyhaproxy.express.port=80 \
-l easyhaproxy.express.localport=3000 \
-l easyhaproxy.express.host=express.byjg.com.br \

20
easymapping/__init__.py
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@ -3,11 +3,14 @@ import hashlib
from jinja2 import Environment, FileSystemLoader
import json
import os
import re
class DockerLabelHandler:
def __init__(self, label):
self.__label_base = label
def get_lookup_label(self):
return self.__label_base
def create(self, key):
if isinstance(key, str):
@ -70,16 +73,23 @@ class HaproxyConfigGenerator:
line = line.strip()
i = line.find("=")
container = line[:i]
jsonStr = line[i+1:]
d = json.loads(jsonStr)
json_str = line[i+1:]
d = json.loads(json_str)
if self.label.create("definitions") not in d.keys():
# Extract the definitions dynamically
definitions = {}
r = re.compile(self.label.get_lookup_label() + r"\.(.*)\..*")
for key in d.keys():
if r.match(key):
definitions[r.search(key).group(1)] = 1
if len(definitions.keys()) == 0:
continue
self.label.set_data(d)
definitions = d[self.label.create("definitions")].split(",")
for definition in definitions:
# Parse each definition found.
for definition in definitions.keys():
mode = self.label.get(
self.label.create([definition, "mode"]),
"http"

2
examples/docker/docker-compose-changed-label.yml
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@ -27,8 +27,6 @@ services:
container:
image: byjg/static-httpserver
labels:
haproxy.definitions: "http,https"
haproxy.http.redirect: host1.local--https://host1.local
haproxy.http.host: host1.local
haproxy.http.port: 80

2
examples/docker/docker-compose-multi-containers.yml
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@ -30,8 +30,6 @@ services:
deploy:
replicas: 2
labels:
easyhaproxy.definitions: "http"
easyhaproxy.http.redirect: google.helloworld.com--www.google.com
easyhaproxy.http.host: www.helloworld.com
easyhaproxy.http.port: 19901

2
examples/docker/docker-compose.yml
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@ -26,8 +26,6 @@ services:
container:
image: byjg/static-httpserver
labels:
easyhaproxy.definitions: "http,https"
easyhaproxy.http.redirect: host1.local--https://host1.local
easyhaproxy.http.host: host1.local
easyhaproxy.http.port: 80

8
tests/fixtures/services vendored
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@ -1,6 +1,6 @@
portainer-agent_agent={"com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"portainer-agent"}
my-stack_agent={"easyhaproxy.definitions":"agent","easyhaproxy.agent.host":"agent.quantum.example.org","easyhaproxy.agent.localport":"9001","easyhaproxy.agent.mode":"tcp","easyhaproxy.agent.port":"31339","com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_cadvisor={"easyhaproxy.definitions":"cadvisor","easyhaproxy.cadvisor.host":"cadvisor.quantum.example.org","easyhaproxy.cadvisor.localport":"8080","easyhaproxy.cadvisor.port":"31337","com.docker.stack.image":"gcr.io/google-containers/cadvisor:v0.34.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_node-exporter={"easyhaproxy.definitions":"exp","easyhaproxy.exp.host":"node-exporter.quantum.example.org","easyhaproxy.exp.localport":"9100","easyhaproxy.exp.port":"31337","com.docker.stack.image":"stefanprodan/swarmprom-node-exporter:v0.16.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_agent={"easyhaproxy.agent.host":"agent.quantum.example.org","easyhaproxy.agent.localport":"9001","easyhaproxy.agent.mode":"tcp","easyhaproxy.agent.port":"31339","com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_cadvisor={"easyhaproxy.cadvisor.host":"cadvisor.quantum.example.org","easyhaproxy.cadvisor.localport":"8080","easyhaproxy.cadvisor.port":"31337","com.docker.stack.image":"gcr.io/google-containers/cadvisor:v0.34.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_node-exporter={"easyhaproxy.exp.host":"node-exporter.quantum.example.org","easyhaproxy.exp.localport":"9100","easyhaproxy.exp.port":"31337","com.docker.stack.image":"stefanprodan/swarmprom-node-exporter:v0.16.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_reverse-proxy={"com.docker.stack.image":"quay.io/pngmbh/easy-haproxy:tcp-mode","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
some-service={"easyhaproxy.definitions":"http,https","easyhaproxy.http.port":"80","easyhaproxy.http.host":"www.somehost.com.br","easyhaproxy.http.localport":"80","easyhaproxy.http.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","easyhaproxy.https.port":"443","easyhaproxy.https.host":"www.somehost.com.br","easyhaproxy.https.localport":"80","easyhaproxy.https.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","easyhaproxy.https.sslcert":"U29tZSBQRU0gQ2VydGlmaWNhdGU="}
some-service={"easyhaproxy.http.port":"80","easyhaproxy.http.host":"www.somehost.com.br","easyhaproxy.http.localport":"80","easyhaproxy.http.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","easyhaproxy.https.port":"443","easyhaproxy.https.host":"www.somehost.com.br","easyhaproxy.https.localport":"80","easyhaproxy.https.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","easyhaproxy.https.sslcert":"U29tZSBQRU0gQ2VydGlmaWNhdGU="}

8
tests/fixtures/services-changed-label vendored
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@ -1,6 +1,6 @@
portainer-agent_agent={"com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"portainer-agent"}
my-stack_agent={"haproxy.definitions":"agent","haproxy.agent.host":"agent.quantum.example.org","haproxy.agent.localport":"9001","haproxy.agent.mode":"tcp","haproxy.agent.port":"31339","com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_cadvisor={"haproxy.definitions":"cadvisor","haproxy.cadvisor.host":"cadvisor.quantum.example.org","haproxy.cadvisor.localport":"8080","haproxy.cadvisor.port":"31337","com.docker.stack.image":"gcr.io/google-containers/cadvisor:v0.34.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_node-exporter={"haproxy.definitions":"exp","haproxy.exp.host":"node-exporter.quantum.example.org","haproxy.exp.localport":"9100","haproxy.exp.port":"31337","com.docker.stack.image":"stefanprodan/swarmprom-node-exporter:v0.16.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_agent={"haproxy.agent.host":"agent.quantum.example.org","haproxy.agent.localport":"9001","haproxy.agent.mode":"tcp","haproxy.agent.port":"31339","com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_cadvisor={"haproxy.cadvisor.host":"cadvisor.quantum.example.org","haproxy.cadvisor.localport":"8080","haproxy.cadvisor.port":"31337","com.docker.stack.image":"gcr.io/google-containers/cadvisor:v0.34.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_node-exporter={"haproxy.exp.host":"node-exporter.quantum.example.org","haproxy.exp.localport":"9100","haproxy.exp.port":"31337","com.docker.stack.image":"stefanprodan/swarmprom-node-exporter:v0.16.0","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
my-stack_reverse-proxy={"com.docker.stack.image":"quay.io/pngmbh/easy-haproxy:tcp-mode","com.docker.stack.namespace":"my-stack","com.planetary-quantum":"monitoring"}
some-service={"haproxy.definitions":"http,https","haproxy.http.port":"80","haproxy.http.host":"www.somehost.com.br","haproxy.http.localport":"80","haproxy.http.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","haproxy.https.port":"443","haproxy.https.host":"www.somehost.com.br","haproxy.https.localport":"80","haproxy.https.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","haproxy.https.sslcert":"U29tZSBQRU0gQ2VydGlmaWNhdGU="}
some-service={"haproxy.http.port":"80","haproxy.http.host":"www.somehost.com.br","haproxy.http.localport":"80","haproxy.http.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","haproxy.https.port":"443","haproxy.https.host":"www.somehost.com.br","haproxy.https.localport":"80","haproxy.https.redirect":"somehost.com.br--https://www.somehost.com.br,somehost.com--https://www.somehost.com.br,www.somehost.com--https://www.somehost.com.br,byjg.ca--https://www.somehost.com.br,www.byjg.ca--https://www.somehost.com.br","haproxy.https.sslcert":"U29tZSBQRU0gQ2VydGlmaWNhdGU="}

4
tests/fixtures/services-multi-containers vendored
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@ -1,2 +1,2 @@
test_nginx.2.t5r94mjlced7m3t5orfjbowmm={"easyhaproxy.definitions":"http","easyhaproxy.http.host":"www.helloworld.com","easyhaproxy.http.localport":"80","easyhaproxy.http.port":"19901","com.docker.stack.image":"stenote/nginx-hostname","com.docker.stack.namespace":"test"}
test_nginx.1.p552hqxkdx88narjrp5kouwb2={"easyhaproxy.definitions":"http","easyhaproxy.http.host":"www.helloworld.com","easyhaproxy.http.localport":"80","easyhaproxy.http.port":"19901","com.docker.stack.image":"stenote/nginx-hostname","com.docker.stack.namespace":"test"}
test_nginx.2.t5r94mjlced7m3t5orfjbowmm={"easyhaproxy.http.host":"www.helloworld.com","easyhaproxy.http.localport":"80","easyhaproxy.http.port":"19901","com.docker.stack.image":"stenote/nginx-hostname","com.docker.stack.namespace":"test"}
test_nginx.1.p552hqxkdx88narjrp5kouwb2={"easyhaproxy.http.host":"www.helloworld.com","easyhaproxy.http.localport":"80","easyhaproxy.http.port":"19901","com.docker.stack.image":"stenote/nginx-hostname","com.docker.stack.namespace":"test"}

2
tests/fixtures/services-tcp vendored
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@ -1,2 +1,2 @@
test_agent={"easyhaproxy.definitions":"agent","easyhaproxy.agent.host":"agent.quantum.local","easyhaproxy.agent.localport":"9001","easyhaproxy.agent.mode":"tcp","easyhaproxy.agent.port":"31339","com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"test", "easyhaproxy.agent.health-check":"ssl"}
test_agent={"easyhaproxy.agent.host":"agent.quantum.local","easyhaproxy.agent.localport":"9001","easyhaproxy.agent.mode":"tcp","easyhaproxy.agent.port":"31339","com.docker.stack.image":"portainer/agent:1.5.1","com.docker.stack.namespace":"test", "easyhaproxy.agent.health-check":"ssl"}
test_proxy={"com.docker.stack.image":"byjg/easy-haproxy:local","com.docker.stack.namespace":"test"}