diff --git a/scripts/lib/docker-functions.sh b/scripts/lib/docker-functions.sh
deleted file mode 100644
index 270a3ce9aa..0000000000
--- a/scripts/lib/docker-functions.sh
+++ /dev/null
@@ -1,409 +0,0 @@
-#!/bin/bash
-
-# Env vars
-# DB aka Database
-DB_HOST="${DB_HOST:-127.0.0.1}"
-DB_HOST_PORT="${DB_HOST_PORT:-5432}"
-DB_NAME="${DB_NAME:-zulip}"
-DB_SCHEMA="${DB_SCHEMA:-zulip}"
-DB_USER="${DB_USER:-zulip}"
-DB_PASSWORD="${DB_PASSWORD:-zulip}"
-REMOTE_POSTGRES_SSLMODE="${REMOTE_POSTGRES_SSLMODE:-prefer}"
-# RabbitMQ
-IGNORE_RABBITMQ_ERRORS="${IGNORE_RABBITMQ_ERRORS:-true}"
-SETTING_RABBITMQ_HOST="${SETTING_RABBITMQ_HOST:-127.0.0.1}"
-SETTING_RABBITMQ_USER="${SETTING_RABBITMQ_USER:-zulip}"
-SECRETS_rabbitmq_password="${SECRETS_rabbitmq_password:-$(echo ${SETTING_RABBITMQ_PASSWORD:-zulip})}"
-unset SETTING_RABBITMQ_PASSWORD
-# Redis
-SETTING_RATE_LIMITING="${SETTING_RATE_LIMITING:-True}"
-SETTING_REDIS_HOST="${SETTING_REDIS_HOST:-127.0.0.1}"
-SETTING_REDIS_PORT="${SETTING_REDIS_PORT:-6379}"
-# Memcached
-SETTING_MEMCACHED_LOCATION="${SETTING_MEMCACHED_LOCATION:-127.0.0.1:11211}"
-# Nginx settings
-NGINX_WORKERS="${NGINX_WORKERS:-2}"
-NGINX_PROXY_BUFFERING="${NGINX_PROXY_BUFFERING:-off}"
-NGINX_MAX_UPLOAD_SIZE="${NGINX_MAX_UPLOAD_SIZE:-24m}"
-# Zulip related settings
-ZULIP_AUTH_BACKENDS="${ZULIP_AUTH_BACKENDS:-EmailAuthBackend}"
-ZULIP_RUN_POST_SETUP_SCRIPTS="${ZULIP_RUN_POST_SETUP_SCRIPTS:-True}"
-# Zulip user setup
-FORCE_FIRST_START_INIT="${FORCE_FIRST_START_INIT:-False}"
-export ZULIP_USER_CREATION_ENABLED="${ZULIP_USER_CREATION_ENABLED:-True}"
-export ZULIP_USER_FULLNAME="${ZULIP_USER_FULLNAME:-Zulip Docker}"
-export ZULIP_USER_DOMAIN="${ZULIP_USER_DOMAIN:-$(echo $SETTING_EXTERNAL_HOST)}"
-export ZULIP_USER_EMAIL="${ZULIP_USER_EMAIL:-}"
-export ZULIP_USER_PASS="${ZULIP_USER_PASS:-zulip}"
-# Auto backup settings
-AUTO_BACKUP_ENABLED="${AUTO_BACKUP_ENABLED:-True}"
-AUTO_BACKUP_INTERVAL="${AUTO_BACKUP_INTERVAL:-30 3 * * *}"
-# Zulip configuration function specific variable(s)
-SPECIAL_SETTING_DETECTION_MODE="${SPECIAL_SETTING_DETECTION_MODE:-True}"
-MANUAL_CONFIGURATION="${MANUAL_CONFIGURATION:-false}"
-# entrypoint.sh specific variable(s)
-ZPROJECT_SETTINGS="/home/zulip/deployments/current/zproject/settings.py"
-SETTINGS_PY="/etc/zulip/settings.py"
-
-# BEGIN app_run functions
-# === run_initial_configuration ===
-prepare_directories() {
-    if [ ! -d "$DATA_DIR" ]; then
-        mkdir -p "$DATA_DIR"
-    fi
-    if [ ! -d "$DATA_DIR/backups" ]; then
-        echo "Creating backups folder ..."
-        mkdir -p "$DATA_DIR/backups"
-        echo "Created backups folder."
-    fi
-    if [ ! -d "$DATA_DIR/certs" ]; then
-        echo "Creating certs folder ..."
-        mkdir -p "$DATA_DIR/certs"
-        echo "Created certs folder."
-    fi
-    if [ ! -d "$DATA_DIR/uploads" ]; then
-        echo "Creating uploads folder ..."
-        mkdir -p "$DATA_DIR/uploads"
-        echo "Created uploads folder."
-    fi
-    echo "Preparing and linking the uploads folder ..."
-    rm -rf /home/zulip/uploads
-    ln -sfT "$DATA_DIR/uploads" /home/zulip/uploads
-    chown zulip:zulip -R "$DATA_DIR/uploads"
-    echo "Prepared and linked the uploads directory."
-}
-set_configuration_value() {
-    if [ -z "$1" ]; then
-        echo "No KEY given for set_configuration_value."
-        return 1
-    fi
-    if [ -z "$3" ]; then
-        echo "No FILE given for set_configuration_value."
-        return 1
-    fi
-    local KEY="$1"
-    local VALUE
-    local FILE="$3"
-    local TYPE="$4"
-    if [ -z "$TYPE" ]; then
-        case "$2" in
-            [Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Nn]one)
-            TYPE="bool"
-            ;;
-            [0-9]*)
-            TYPE="integer"
-            ;;
-            [\[\(]*[\]\)])
-            TYPE="array"
-            ;;
-            *)
-            TYPE="string"
-            ;;
-        esac
-    fi
-    case "$TYPE" in
-        emptyreturn)
-        if [ -z "$2" ]; then
-            return 0
-        fi
-        ;;
-        literal)
-        VALUE="$1"
-        ;;
-        bool|boolean|int|integer|array)
-        VALUE="$KEY = $2"
-        ;;
-        string|*)
-        VALUE="$KEY = '${2//\'/\'}'"
-        ;;
-    esac
-    echo "$VALUE" >> "$FILE"
-    echo "Setting key \"$KEY\", type \"$TYPE\" in file \"$FILE\"."
-}
-configure_nginx() {
-    echo "Executing nginx configuration ..."
-    sed -i "s/worker_processes .*/worker_processes $NGINX_WORKERS;/g" /etc/nginx/nginx.conf
-    sed -i "s/client_max_body_size .*/client_max_body_size $NGINX_MAX_UPLOAD_SIZE;/g" /etc/nginx/nginx.conf
-    sed -i "s/proxy_buffering .*/proxy_buffering $NGINX_PROXY_BUFFERING;/g" /etc/nginx/zulip-include/proxy_longpolling
-    echo "Nginx configuration succeeded."
-}
-configure_certs() {
-    echo "Executing certificates configuration..."
-    if [ ! -f "$DATA_DIR/certs/zulip.key" ] && [ ! -f "$DATA_DIR/certs/zulip.combined-chain.crt" ]; then
-        /root/zulip/scripts/setup/generate-self-signed-cert "$ZULIP_USER_DOMAIN"
-        mv /etc/ssl/private/zulip.key "$DATA_DIR/certs/zulip.key"
-        mv /etc/ssl/certs/zulip.combined-chain.crt "$DATA_DIR/certs/zulip.combined-chain.crt"
-    fi
-    ln -sfT "$DATA_DIR/certs/zulip.key" /etc/ssl/private/zulip.key
-    ln -sfT "$DATA_DIR/certs/zulip.combined-chain.crt" /etc/ssl/certs/zulip.combined-chain.crt
-    echo "Certificates configuration succeeded."
-}
-configure_secrets() {
-    echo "Setting Zulip secrets ..."
-    if [ ! -e "$DATA_DIR/zulip-secrets.conf" ]; then
-        echo "Generating Zulip secrets ..."
-        /root/zulip/scripts/setup/generate_secrets.py --production
-        mv "/etc/zulip/zulip-secrets.conf" "$DATA_DIR/zulip-secrets.conf" || {
-            echo "Couldn't move the generate zulip secrets to the data dir."; exit 1;
-        }
-        echo "Secrets generation succeeded."
-    else
-        echo "Secrets already generated/existing."
-    fi
-    set +e
-    local SECRETS=($(env | sed -nr "s/SECRETS_([0-9A-Z_a-z-]*).*/\1/p"))
-    for SECRET_KEY in "${SECRETS[@]}"; do
-        local key="SECRETS_$SECRET_KEY"
-        local SECRET_VAR="${!key}"
-        if [ -z "$SECRET_VAR" ]; then
-            echo "Empty secret for key \"$SECRET_KEY\"."
-        fi
-        grep -q "$SECRET_KEY" "$DATA_DIR/zulip-secrets.conf"
-        if (($? > 0)); then
-            echo "$SECRET_KEY = $SECRET_VAR" >> "$DATA_DIR/zulip-secrets.conf"
-            echo "Secret added for \"$SECRET_KEY\"."
-        else
-            sed -i -r "s~#?$SECRET_KEY[ ]*=.*~$SECRET_KEY = $SECRET_VAR~g" "$DATA_DIR/zulip-secrets.conf"
-            echo "Secret found for \"$SECRET_KEY\"."
-        fi
-    done
-    set -e
-    unset SECRET_KEY SECRET_VAR key
-    if [ -e "/etc/zulip/zulip-secrets.conf" ]; then
-        rm "/etc/zulip/zulip-secrets.conf"
-    fi
-    echo "Linking secrets from data dir to etc zulip  ..."
-    ln -s "$DATA_DIR/zulip-secrets.conf" "/etc/zulip/zulip-secrets.conf" || {
-        echo "Couldn't link existing zulip secrets to etc zulip.";
-        exit 1;
-    }
-    echo "Linked existing secrets from data dir to etc zulip."
-    echo "Zulip secrets configuration succeeded."
-}
-configure_database_settings() {
-    echo "Setting database configuration ..."
-    local VALUE="{
-  'default': {
-    'ENGINE': 'django.db.backends.postgresql_psycopg2',
-    'NAME': '$DB_NAME',
-    'USER': '$DB_USER',
-    'PASSWORD': '$DB_PASSWORD',
-    'HOST': '$DB_HOST',
-    'PORT': '$DB_HOST_PORT',
-    'SCHEMA': '$DB_SCHEMA',
-    'CONN_MAX_AGE': 600,
-    'OPTIONS': {
-        'connection_factory': TimeTrackingConnection,
-        'sslmode': 'prefer',
-    },
-  },
-}"
-    set_configuration_value "DATABASES" "$VALUE" "$ZPROJECT_SETTINGS" "array"
-    set_configuration_value "REMOTE_POSTGRES_HOST" "$DB_HOST" "$SETTINGS_PY" "string"
-    set_configuration_value "REMOTE_POSTGRES_SSLMODE" "$REMOTE_POSTGRES_SSLMODE" "$SETTINGS_PY" "string"
-    echo "Database configuration succeeded."
-}
-# configure_authentication_backends Configure the authentication backends list/array to be used by Zulip
-configure_authentication_backends() {
-    echo "Activating authentication backends ..."
-    local FIRST=true
-    echo "$ZULIP_AUTH_BACKENDS" | sed -n 1'p' | tr ',' '\n' | while read AUTH_BACKEND; do
-        if [ "$FIRST" = true ]; then
-            set_configuration_value "AUTHENTICATION_BACKENDS" "('zproject.backends.${AUTH_BACKEND//\'/\'}',)" "$SETTINGS_PY" "array"
-            FIRST=false
-        else
-            set_configuration_value "AUTHENTICATION_BACKENDS += ('zproject.backends.${AUTH_BACKEND//\'/\'}',)" "" "$SETTINGS_PY" "literal"
-        fi
-        echo "Adding authentication backend \"$AUTH_BACKEND\"."
-    done
-    echo "Authentication backend activation succeeded."
-}
-configure_zulip() {
-    echo "Executing Zulip configuration ..."
-    if [ ! -z "$ZULIP_CUSTOM_SETTINGS" ]; then
-        echo -e "\n$ZULIP_CUSTOM_SETTINGS" >> "$ZPROJECT_SETTINGS"
-    fi
-    local given_settings=($(env | sed -n -r "s/SETTING_([0-9A-Za-z_]*).*/\1/p"))
-    for setting_key in "${given_settings[@]}"; do
-        local key="SETTING_$setting_key"
-        local setting_var="${!key}"
-        local file="$ZPROJECT_SETTINGS"
-        local type="string"
-        if [ -z "$setting_var" ]; then
-            echo "Empty var for key \"$setting_key\"."
-            continue
-        fi
-        # Zulip settings.py / zproject specific overrides here
-        if [ "$setting_key" = "ADMIN_DOMAIN" ] || [ "$setting_key" = "MEMCACHED_LOCATION" ] || \
-            [[ "$setting_key" = RABBITMQ* ]] || [[ "$setting_key" = REDIS* ]] || \
-            [ "$setting_key" = "RATE_LIMITING" ] || [ "$setting_key" = "EXTERNAL_HOST" ] || \
-            [ "$setting_key" = "ZULIP_ADMINISTRATOR" ] || [ "$setting_key" = "ADMIN_DOMAIN" ] || \
-            [ "$setting_key" = "SECRET_KEY" ] || [ "$setting_key" = "NOREPLY_EMAIL_ADDRESS" ] || \
-            [ "$setting_key" = "DEFAULT_FROM_EMAIL" ] || [ "$setting_key" = "ALLOWED_HOSTS" ] || \
-            [[ "$setting_key" = AUTH_* ]] || [[ "$setting_key" = LDAP_* ]]; then
-            file="$SETTINGS_PY"
-        fi
-        if [ "$setting_key" = "AUTH_LDAP_USER_SEARCH" ] || [ "$setting_key" = "AUTH_LDAP_USER_ATTR_MAP" ] || \
-           ([ "$setting_key" = "LDAP_APPEND_DOMAIN" ] && [ "$setting_var" = "None" ]) || [ "$setting_key" = "SECURE_PROXY_SSL_HEADER" ] || \
-           [[ "$setting_key" = "CSRF_"* ]] || [[ "$setting_key" = "ALLOWED_HOSTS" ]]; then
-            type="array"
-        fi
-        if ([ "$SPECIAL_SETTING_DETECTION_MODE" = "True" ] || [ "$SPECIAL_SETTING_DETECTION_MODE" = "true" ]) || [ "$type" = "string" ]; then
-            type=""
-        fi
-        set_configuration_value "$setting_key" "$setting_var" "$file" "$type"
-    done
-    unset setting_key setting_var
-    su zulip -c "/home/zulip/deployments/current/manage.py checkconfig"
-    if [[ $? != 0 ]]; then
-        echo "Error in the Zulip configuration. Exiting."
-        exit 1
-    fi
-    echo "Zulip configuration succeeded."
-}
-configure_auto_backup() {
-    if ([ "$AUTO_BACKUP_ENABLED" != "True" ] && [ "$AUTO_BACKUP_ENABLED" != "true" ]); then
-        rm -f /etc/cron.d/autobackup
-        echo "Auto backup is disabled. Continuing."
-        return 0
-    fi
-    echo "MAILTO=""\n$AUTO_BACKUP_INTERVAL cd /;/entrypoint.sh app:backup" > /etc/cron.d/autobackup
-    echo "Auto backup enabled."
-}
-run_initial_configuration() {
-    echo "=== Begin Initial Configuration Phase ==="
-    prepare_directories
-    configure_nginx
-    configure_certs
-    configure_database_settings
-    if [ "$MANUAL_CONFIGURATION" = "False" ] || [ "$MANUAL_CONFIGURATION" = "false" ]; then
-        configure_secrets
-        configure_authentication_backends
-        configure_zulip
-    fi
-    configure_auto_backup
-    echo "=== End Initial Configuration Phase ==="
-}
-# === bootstrap_environment ===
-wait_for_database() {
-    export PGPASSWORD="$DB_PASSWORD"
-    local TIMEOUT=60
-    echo "Waiting for database server to allow connections ..."
-    while ! /usr/bin/pg_isready -h "$DB_HOST" -p "$DB_HOST_PORT" -U "$DB_USER" -t 1 >/dev/null 2>&1
-    do
-        TIMEOUT=$(expr $TIMEOUT - 1)
-        if [[ $TIMEOUT -eq 0 ]]; then
-            echo "Could not connect to database server. Exiting."
-            unset PGPASSWORD
-            exit 1
-        fi
-        echo -n "."
-        sleep 1
-    done
-    unset PGPASSWORD
-}
-bootstrap_rabbitmq() {
-    echo "Bootstrapping RabbitMQ ..."
-    set +e
-    /root/zulip/scripts/setup/configure-rabbitmq | tail -n 16
-    RETURN_CODE=$?
-    if [[ $RETURN_CODE != 0 ]] && ([ "$IGNORE_RABBITMQ_ERRORS" = "False" ] || [ "$IGNORE_RABBITMQ_ERRORS" = "false" ]); then
-        echo "=> In most cases you can completely ignore the RabbmitMQ bootstrap errors."
-        echo "=> If you want to ignore RabbitMQ bootstrap errors, (re)add the env var 'IGNORE_RABBITMQ_ERRORS' with 'true'."
-        echo "Zulip RabbitMQ bootstrap failed in \"configure-rabbitmq\" exit code $RETURN_CODE. Exiting."
-        exit $RETURN_CODE
-    fi
-    set -e
-    echo "RabbitMQ bootstrap succeeded."
-}
-zulip_first_start_init() {
-    echo "Executing Zulip first start init ..."
-    if [ -e "$DATA_DIR/.initiated" ] && ([ "$FORCE_FIRST_START_INIT" != "True" ] && [ "$FORCE_FIRST_START_INIT" != "true" ]); then
-        echo "First Start Init not needed. Continuing."
-        return 0
-    fi
-    local RETURN_CODE=0
-    set +e
-
-    /home/zulip/deployments/current/scripts/setup/postgres-init-db
-    RETURN_CODE=$?
-    if [[ $RETURN_CODE != 0 ]]; then
-        echo "Zulip first start init failed at \"postgres-init-db\" with exit code $RETURN_CODE. Exiting."
-        exit $RETURN_CODE
-    fi
-
-    su zulip -c /home/zulip/deployments/current/scripts/setup/initialize-database
-    RETURN_CODE=$?
-    if [[ $RETURN_CODE != 0 ]]; then
-        echo "Zulip first start init failed at \"initialize-database\" with exit code $RETURN_CODE. Exiting."
-        exit $RETURN_CODE
-    fi
-
-    if ([ "$ZULIP_USER_CREATION_ENABLED" = "True" ] || [ "$ZULIP_USER_CREATION_ENABLED" = "true" ]); then
-        /home/zulip/deployments/current/scripts/create-zulip-admin
-        RETURN_CODE=$?
-        if [[ $RETURN_CODE != 0 ]]; then
-            echo "Zulip first start init failed at \"create-zulip-admin\" with exit code $RETURN_CODE. Exiting."
-            exit $RETURN_CODE
-        fi
-    fi
-    set -e
-    touch "$DATA_DIR/.initiated"
-    echo "Zulip first start init successful."
-}
-# migrate_zulip_database Runs the zulip database migrations
-# This runs the migration every time the container runs, to make sure Zulip has the
-# uptodate database version.
-migrate_zulip_database() {
-    echo "Migrating Zulip to new version ..."
-    set +e
-    su zulip -c "/home/zulip/deployments/current/manage.py migrate --noinput"
-    local RETURN_CODE=$?
-    if [[ $RETURN_CODE != 0 ]]; then
-        echo "Zulip migration failed with exit code $RETURN_CODE. Exiting."
-        exit $RETURN_CODE
-    fi
-    set -e
-    rm -rf "$DATA_DIR/.zulip-*"
-    touch "$DATA_DIR/.zulip-$ZULIP_VERSION"
-    echo "Zulip migration succeeded."
-}
-# run_post_setup_scripts Run user given custom post setup scripts
-run_post_setup_scripts() {
-    echo "Post setup scripts execution ..."
-    if ([ "$ZULIP_RUN_POST_SETUP_SCRIPTS" != "True" ] && [ "$ZULIP_RUN_POST_SETUP_SCRIPTS" != "true" ]); then
-        echo "Not running post setup scripts. ZULIP_RUN_POST_SETUP_SCRIPTS isn't true."
-        return 0
-    fi
-    if [ ! -d "$DATA_DIR/post-setup.d/" ]; then
-        echo "No post-setup.d folder found. Continuing."
-        return 0
-    fi
-    if [ ! "$(ls "$DATA_DIR/post-setup.d/")" ]; then
-        echo "No post setup scripts found in \"$DATA_DIR/post-setup.d/\"."
-        return 0
-    fi
-    set +e
-    for file in $DATA_DIR/post-setup.d/*; do
-        if [ -x "$file" ]; then
-            echo "Executing \"$file\" ..."
-            bash -c "$file"
-            echo "Executed \"$file\". Return code $?."
-        else
-            echo "Permissions denied for \"$file\". Please check the permissions. Exiting."
-            exit 1
-        fi
-    done
-    set -e
-    echo "Post setup scripts execution succeeded."
-}
-bootstrap_environment() {
-    echo "=== Begin Bootstrap Phase ==="
-    wait_for_database
-    bootstrap_rabbitmq
-    zulip_first_start_init
-    migrate_zulip_database
-    run_post_setup_scripts
-    echo "=== End Bootstrap Phase ==="
-}
-# END app_run functions