Problem: Stack installation on Centos 7 caused issues with some packages (#2339)

pkg/configuration/roles/docker/defaults/main.yml

@@ -17,5 +17,10 @@ apt_key_url: "https://download.docker.com/linux/{{ distribution_name }}/gpg"
 docker_yum_repo: "https://download.docker.com/linux/{{ distribution_name }}/{{ distribution_major }}/$basearch/{{ docker_update_channel }}"
 docker_dnf_repo: "https://download.docker.com/linux/{{ distribution_name }}/{{ docker_pkg }}.repo"
 
+# Epel repo
+epel_repo_url: "https://dl.fedoraproject.org/pub/epel/epel-release-latest-{{ ansible_distribution_major_version }}.noarch.rpm"
+epel_repo_gpg_key_url: "/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-{{ ansible_distribution_major_version }}"
+epel_repofile_path: "/etc/yum.repos.d/epel.repo"
+
 # Docker configuration
-bigchaindb_docker_net: "bigchaindb_docker_net"
+bigchaindb_docker_net: "bigchaindb_docker_net"

pkg/configuration/roles/docker/tasks/centos.yml

@@ -11,6 +11,30 @@
   when: uninstall_old_version
   tags: [docker]
 
+- name: Check if EPEL repo is already configured.
+  stat: path={{ epel_repofile_path }}
+  register: epel_repofile_result
+  tags: [docker]
+
+- name: Install EPEL repo.
+  yum:
+    name: "{{ epel_repo_url }}"
+    state: present
+  register: result
+  until: 'result.rc == 0'
+  retries: 5
+  delay: 10
+  when: not epel_repofile_result.stat.exists
+  tags: [docker]
+
+- name: Import EPEL GPG key.
+  rpm_key:
+    key: "{{ epel_repo_gpg_key_url }}"
+    state: present
+  when: not epel_repofile_result.stat.exists
+  ignore_errors: "{{ ansible_check_mode }}"
+  tags: [docker]
+
 - name: Setup Pre-reqs | CentOS
   yum:
     name: "{{ item }}"
@@ -39,4 +63,4 @@
     name: "{{ docker_pkg }}"
     state: present
     update_cache: yes
-  tags: [docker]
+  tags: [docker]

pkg/configuration/roles/mongodb/defaults/main.yml

@@ -12,6 +12,11 @@ mongodb_apt_repo: "deb [arch={{ server_arch }}] http://repo.mongodb.org/apt/{{ d
 mongodb_yum_base_url: "https://repo.mongodb.org/yum/{{ ansible_os_family|lower }}/$releasever/{{ mongodb_package }}/{{ mongo_version }}/{{ ansible_architecture }}"
 mongodb_dnf_base_url: "https://repo.mongodb.org/yum/{{ ansible_os_family|lower }}/7/{{ mongodb_package }}/{{ mongo_version }}/{{ ansible_architecture }}"
 
+# Epel repo
+epel_repo_url: "https://dl.fedoraproject.org/pub/epel/epel-release-latest-{{ ansible_distribution_major_version }}.noarch.rpm"
+epel_repo_gpg_key_url: "/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-{{ ansible_distribution_major_version }}"
+epel_repofile_path: "/etc/yum.repos.d/epel.repo"
+
 # MongoDB running config
 mongodb_storage_path: /data/db/main
 mongodb_log_path: /var/log/mongodb
@@ -26,4 +31,4 @@ mongodb_port: 27017
 # Docker configuration
 bigchaindb_docker_net: "bigchaindb_docker_net"
 mongodb_docker_name: "mongodb"
-mongodb_host_mount_dir: "{{ home_dir }}/mongodb_docker"
+mongodb_host_mount_dir: "{{ home_dir }}/mongodb_docker"

pkg/configuration/roles/mongodb/tasks/centos.yml

@@ -1,4 +1,28 @@
 ---
+- name: Check if EPEL repo is already configured.
+  stat: path={{ epel_repofile_path }}
+  register: epel_repofile_result
+  tags: [mongodb]
+
+- name: Install EPEL repo.
+  yum:
+    name: "{{ epel_repo_url }}"
+    state: present
+  register: result
+  until: 'result.rc == 0'
+  retries: 5
+  delay: 10
+  when: not epel_repofile_result.stat.exists
+  tags: [mongodb]
+
+- name: Import EPEL GPG key.
+  rpm_key:
+    key: "{{ epel_repo_gpg_key_url }}"
+    state: present
+  when: not epel_repofile_result.stat.exists
+  ignore_errors: "{{ ansible_check_mode }}"
+  tags: [mongodb]
+
 - name: Add MongoDB Repo | yum
   yum_repository:
     name: "{{ mongodb_package }}-{{ mongo_version }}"
@@ -23,4 +47,4 @@
     state: present
     update_cache: yes
   tags: [mongodb]
-  
+  

pkg/configuration/roles/mongodb/tasks/main.yml

@@ -16,4 +16,4 @@
   when: action|lower == 'start'
 
 - import_tasks: stop.yml
-  when: action|lower == 'stop'
+  when: action|lower == 'stop'

pkg/scripts/stack.sh

@@ -223,7 +223,7 @@ elif [[ $stack_type == "cloud" && $stack_type_provider == "azure" ]]; then
 	vagrant up --provider azure --provision
 	ansible-playbook $CONF_DIR/bigchaindb-start.yml \
 		-i $CONF_DIR/hosts/all \
-		--extra-vars "operation=start home_path=/bigchaindb"
+		--extra-vars "operation=start home_path=/opt/stack"
 elif [[ $stack_type == "docker" ]]; then
 	echo "Configuring Dockers locally!"
 	source $SCRIPTS_DIR/bootstrap.sh --operation install