Update edition to team

Reviewed-on: #1

app/Dockerfile

@@ -2,11 +2,11 @@ FROM alpine:3.10
 
 # Some ENV variables
 ENV PATH="/mattermost/bin:${PATH}"
-ENV MM_VERSION=5.31.0
+ENV MM_VERSION=5.34.2
 ENV MM_INSTALL_TYPE=docker
 
 # Build argument to set Mattermost edition
-ARG edition=enterprise
+ARG edition=team
 ARG PUID=2000
 ARG PGID=2000
 ARG MM_BINARY=
@@ -25,6 +25,7 @@ RUN apk add --no-cache \
 	netcat-openbsd \
 	xmlsec-dev \
 	tzdata \
+	postgresql-client \
 	&& rm -rf /tmp/*
 
 # Get Mattermost

app/entrypoint.sh

@@ -74,7 +74,11 @@ if [ "$1" = 'mattermost' ]; then
 
   # Wait another second for the database to be properly started.
   # Necessary to avoid "panic: Failed to open sql connection pq: the database system is starting up"
-  sleep 1
+  until pg_isready -h $DB_HOST -p $DB_PORT_NUMBER
+  do
+	  echo "Database is not ready yet. Waiting 5 seconds."
+	  sleep 5
+  done
 
   echo "Starting mattermost"
 fi

db/Dockerfile

@@ -1,4 +1,4 @@
-FROM postgres:9.4-alpine
+FROM postgres:12.7-alpine
 
 ENV DEFAULT_TIMEZONE UTC
 
@@ -10,7 +10,7 @@ RUN apk add --no-cache \
       libc6-compat \
       libffi-dev \
       linux-headers \
-      python-dev \
+      python3-dev \
       py-pip \
       py-cryptography \
       pv \