[added] support for Fedora >= 27

tasks/install-fedora.yml

+---
+- name: Install any necessary dependencies [RedHat/Fedora]
+  dnf: 
+    name: "{{ item }}" 
+    state: present
+  with_items:
+    - curl
+
+- name: Install any necessary PIP dependencies [RedHat/Fedora]
+  dnf: 
+    name: "{{ item }}" 
+    state: present
+  with_items:
+    - python-pip
+  when: influxdb_install_python_client
+
+- name: Add InfluxData repository file [RHEL/Fedora]
+  template:
+    src: etc/yum.repos.d/influxdata.fedora.repo.j2
+    dest: /etc/yum.repos.d/influxdata.repo
+    force: yes
+    backup: yes
+  when: influxdb_install_url is not defined or influxdb_install_url == None
+
+- name: Install InfluxDB packages [RHEL/Fedora]
+  dnf: 
+    name: influxdb
+    state: present
+  when: influxdb_install_url is not defined or influxdb_install_url == None
+
+- name: Install InfluxDB from URL [RHEL/Fedora]
+  dnf: 
+    name: "{{ influxdb_install_url }}"
+    state: present
+  when: influxdb_install_url is defined and influxdb_install_url != None
+
+- name: Capture installed InfluxDB version
+  command: rpm -q influxdb
+  register: reg_influxdb_version
+
+- debug: var=reg_influxdb_version.stdout_lines

tasks/install.yml

 ---
 - include: install-redhat.yml
-  when: ansible_os_family == "RedHat"
+  when: ansible_os_family == "RedHat" and ansible_distribution != "Fedora"
+
+- include: install-fedora.yml
+  when: ansible_os_family == "RedHat" and ansible_distribution == "Fedora"
 
 - include: install-debian.yml
   when: ansible_os_family == "Debian"

templates/etc/yum.repos.d/influxdata.fedora.repo.j2

+[influxdb]
+name = InfluxDB Repository - {{ ansible_distribution }} $releasever
+baseurl = https://repos.influxdata.com/rhel/7Server/$basearch/{{ influxdb_install_version }}
+enabled = 1
+gpgcheck = 1
+gpgkey = https://repos.influxdata.com/influxdb.key
+sslverify = 1
\ No newline at end of file