just install Miniconda3 and update distribution on role run

defaults/main.yml

@@ -1,4 +1,4 @@
 ---
-
-conda_distribution: Miniconda3
-conda_directory: /opt/{{ conda_distribution }}
+conda_directory: /opt/conda
+conda_installer_url: https://repo.continuum.io/miniconda/Miniconda3-4.5.11-Linux-x86_64.sh
+conda_installer_checksum: sha256:ea4594241e13a2671c5b158b3b813f0794fe58d514795fbf72a1aad24db918cf

tasks/main.yml

@@ -2,20 +2,29 @@
 
 - name: download installer
   get_url:
-    url: "{{ _conda_installer_download_url }}"
-    dest: "/tmp/{{ _conda_installer_filename }}"
-    checksum: "{{ _conda_installer_checksum }}"
+    url: "{{ conda_installer_url }}"
+    dest: "/opt/{{ _conda_installer_filename }}"
+    checksum: "{{ conda_installer_checksum }}"
     mode: 0755
     owner: root
     group: root
 
 - name: install
-  command: /tmp/{{ _conda_installer_filename }} -b -u -p {{ conda_directory }}
-  vars:
+  command: /opt/{{ _conda_installer_filename }} -b -p {{ conda_directory }}
+  args:
     creates: "{{ conda_directory }}/bin/conda"
 
+- name: update
+  command: conda update --all --json --quiet
+  environment:
+    PATH: /opt/conda/bin:{{ ansible_env.PATH }}
+  register: _conda_update_command
+  failed_when: _conda_update_command.rc != 0 and not _conda_update.sucess
+  changed_when: _conda_update.actions is defined
+
 - name: link conda fish
   file:
     src: "{{ conda_directory }}/etc/fish/conf.d/conda.fish"
     dest: /etc/fish/conf.d/conda.fish
     state: link
+    follow: false

vars/main.yml

@@ -1,17 +1,4 @@
 ---
 
-
-
-_conda_installer_download_url: "{{ _conda_installer_download_url_map[conda_distribution] }}"
-_conda_installer_download_url_map:
-  Anaconda3: https://repo.anaconda.com/archive/Anaconda3-5.3.0-Linux-x86_64.sh
-  Anaconda2: https://repo.anaconda.com/archive/Anaconda2-5.3.0-Linux-x86_64.sh
-  Miniconda3: https://repo.continuum.io/miniconda/Miniconda3-4.5.11-Linux-x86_64.sh
-  Miniconda2: https://repo.continuum.io/miniconda/Miniconda2-4.5.11-Linux-x86_64.sh
-_conda_installer_filename: "{{ _conda_installer_download_url | urlsplit('path') | basename }}"
-_conda_installer_checksum: "{{ _conda_installer_checksum_map[conda_distribution] }}"
-_conda_installer_checksum_map:
-  Anaconda3: sha256:cfbf5fe70dd1b797ec677e63c61f8efc92dad930fd1c94d60390bb07fdc09959
-  Anaconda2: sha256:50eeaab24bfa2472bc6485fe8f0e612ed67e561eda1ff9fbf07b62c96443c1be
-  Miniconda3: md5:e1045ee415162f944b6aebfe560b8fee
-  Miniconda2: md5:458324438b7b0e5afcc272b63d44195d
+_conda_installer_filename: "{{ conda_installer_url | urlsplit('path') | basename }}"
+_conda_update: "{{ _conda_update_command.stdout | from_json }}"