fix: parse IBMSP checksum file on remote host instead of localhost to make the...

fix: parse IBMSP checksum file on remote host instead of localhost to make the tasks usable on Gitlab-CI

tasks/install_tsm_client.yml

@@ -7,10 +7,18 @@
   #delegate_to: 127.0.0.1
 
 - name: >
-    Extract IBM TSM Client setup archive checksum from file. We want to use
-    this info later to verify the integrity of our download.
+    Extract IBM TSM Client setup archive checksum string from file. This looks
+    like 
+    "e24735f2f2f88bedc93371eae507c14dccb8e7be2676794b53ad94674338d8a1  8.1.15.0-TIV-TSMBAC-LinuxX86.tar".
+    We want to use this info later to verify the integrity of our download.
+  ansible.builtin.slurp:
+    src: "/tmp/{{ tsm_version_long | default(tsm_default_version_long) }}.0-TIV-TSMBAC-LinuxX86.tar.sha256sum.txt"
+  register: checksum_slurp
+
+# The Ansible split() function behaves exactly like Python's.
+- name: parse checksum value from checksum string
   ansible.builtin.set_fact:
-    tsm_checksum: "{{ lookup('file', '/tmp/'+ tsm_version_long | default(tsm_default_version_long) +'.0-TIV-TSMBAC-LinuxX86.tar.sha256sum.txt').split(' ')[0] | lower }}"
+    tsm_checksum: "{{ checksum_slurp['content'] | b64decode | split() | lower }}"
 
 
 
@@ -29,9 +37,9 @@
     url: "https://public.dhe.ibm.com/storage/tivoli-storage-management/maintenance/client/v8r1/Linux/LinuxX86/BA/{{ tsm_version_short | default(tsm_default_version_short) }}/{{ tsm_version_long | default(tsm_default_version_long) }}.0-TIV-TSMBAC-LinuxX86.tar"
     dest: "/tmp/"
     mode: "0644"
-    checksum: "sha256:{{ tsm_checksum | default(omit) }}"
+    checksum: "sha256:{{ tsm_checksum[0] | default(omit) }}"
   when: (( not ibmsp_tar.stat.exists ) or 
-         ( not ibmsp_tar.stat.checksum == tsm_checksum ))
+         ( not ibmsp_tar.stat.checksum == tsm_checksum[0] ))