kubespray/roles/network_plugin/weave/templates/weave.j2

WEAVE_PEERS="{% for host in groups['k8s-cluster'] %}{{ hostvars[host]['access_ip'] | default(hostvars[host]['ip'] | default(hostvars[host]['ansible_default_ipv4']['address'])) }}{% if not loop.last %} {% endif %}{% endfor %}"
WEAVEPROXY_ARGS="--rewrite-inspect --without-dns"
WEAVE_SUBNET="--ipalloc-range {{ kube_pods_subnet }}"
{% if weave_password is defined %}
WEAVE_PASSWORD="{{ weave_password }}"
{% endif %}