'Internal Server Error' when deploying Application with Traefik and LetsEncrypt - docker

Question

I'm new to SSL certificates with Traefik and have been having real trouble getting a successful deployment.
I have a server and domain that I have deployed my application on using Traefik and Http without issue. I would now like to deploy the same application, running on port 9000, to be deployed in Https using LetsEncrypt following the Traefik docs . I can verify that the certificate has been properly created using an SSL checker, however, when I try to visit the site I get Internal Server Error. There are no errors reported in either of the docker logs and I cannot figure out what to try next.
docker-compose.yml
version: '2'
services:
traefik:
image: traefik:v1.7
restart: always
ports:
- 80:80
- 443:443
networks:
- web
volumes:
- /var/run/docker.sock:/var/run/docker.sock
- /opt/traefik/traefik.toml:/traefik.toml
- /opt/traefik/acme.json:/acme.json
container_name: traefik
app:
image: myapp_image
container_name: app
restart: always
networks:
- web
ports:
- "9000:9000"
labels:
- "traefik.docker.network=web"
- "traefik.enable=true"
- "traefik.basic.frontend.rule=Host:myapp.com"
- "traefik.basic.port=9000"
- "traefik.basic.protocol=http"
- "traefik.admin.frontend.rule=Host:myapp.com"
- "traefik.admin.protocol=https"
- "traefik.admin.port=9000"
networks:
web:
external: true
traefik.toml
debug = false
logLevel = "ERROR"
defaultEntryPoints = ["https","http"]
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.redirect]
entryPoint = "https"
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
[retry]
[docker]
endpoint = "unix:///var/run/docker.sock"
domain = "myapp.com"
watch = true
exposedByDefault = false
[acme]
email = "myemail#email.com"
storage = "acme.json"
entryPoint = "https"
onHostRule = true
[acme.httpChallenge]
entryPoint = "http"

Answer 1

Finally was able to find a workable solution for this. I may have just been using old information but the best reference to host an application with Traefik on Https using LetsEncrypt was found here.
The working Yaml example is below. Using this example will also eliminate the need for a Toml file!
version: "3.3"
services:
traefik:
image: "traefik:v2.2"
container_name: "traefik"
command:
#- "--log.level=DEBUG"
- "--api.insecure=true"
- "--providers.docker=true"
- "--providers.docker.exposedbydefault=false"
- "--entrypoints.websecure.address=:443"
- "--certificatesresolvers.myresolver.acme.tlschallenge=true"
#- "--certificatesresolvers.myresolver.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory"
- "--certificatesresolvers.myresolver.acme.email=postmaster#example.com"
- "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"
ports:
- "443:443"
- "8080:8080"
volumes:
- "./letsencrypt:/letsencrypt"
- "/var/run/docker.sock:/var/run/docker.sock:ro"
whoami:
image: "containous/whoami"
container_name: "simple-service"
labels:
- "traefik.enable=true"
- "traefik.http.routers.whoami.rule=Host(`whoami.example.com`)"
- "traefik.http.routers.whoami.entrypoints=websecure"
- "traefik.http.routers.whoami.tls.certresolver=myresolver"