diff --git a/.github/workflows/centos.yml b/.github/workflows/centos.yml
deleted file mode 100644
index c6720cfe139..00000000000
--- a/.github/workflows/centos.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-# Validate on CentoOS.
-# CentOS 7 is maintain in PMDK project as it is required for DAOS.
-name: CentOS
-
-on:
-  workflow_dispatch:
-  workflow_call:
-
-jobs:
-  linux:
-    name: CentOS
-    runs-on: ubuntu-latest
-    env:
-      GITHUB_REPO: pmem/pmdk
-      DOCKER_REPO: ghcr.io/pmem/pmdk
-      HOST_WORKDIR: /home/runner/work/pmdk/pmdk
-      WORKDIR:      utils/docker
-      PMDK_CC:      gcc
-      PMDK_CXX:     g++
-      MAKE_PKG:     0
-      VALGRIND:     1
-      SRC_CHECKERS: 0
-      OS:           centos
-    strategy:
-      matrix:
-        CONFIG: [
-                 "OS_VER=7 FAULT_INJECTION=1 TEST_BUILD=debug",
-                 "OS_VER=7 TEST_BUILD=nondebug",
-                 "OS_VER=7 TEST_BUILD=debug NDCTL_ENABLE=n",
-                 "OS_VER=7 TEST_BUILD=nondebug NDCTL_ENABLE=n",
-                 "OS_VER=stream TEST_BUILD=debug",
-                 "OS_VER=stream FAULT_INJECTION=1 TEST_BUILD=debug",
-                 "OS_VER=stream TEST_BUILD=nondebug",
-                ]
-    steps:
-      - name: Clone the git repo
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 50
-
-      - name: Pull or rebuild the image
-        run: cd $WORKDIR && ${{ matrix.CONFIG }} ./pull-or-rebuild-image.sh
-
-      - name: Run the build
-        run: cd $WORKDIR && ${{ matrix.CONFIG }} ./build-CI.sh
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 01ecb83f76f..f7ff0310a8d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -45,9 +45,3 @@ jobs:
     needs: [src_checkers, basic_build]
     uses: ./.github/workflows/ubuntu.yml
     name: Ubuntu
-
-
-  call-centos:
-    needs: [src_checkers, basic_build]
-    uses: ./.github/workflows/centos.yml
-    name: CentOS
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index fa499eed45d..9852afe2bb8 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -43,6 +43,8 @@ jobs:
                  "OS=rockylinux OS_VER=9 MAKE_PKG=1 EXPERIMENTAL=y VALGRIND=0",
                  "OS=fedora OS_VER=37 PMDK_CC=clang PMDK_CXX=clang++ TEST_BUILD=debug",
                  "OS=fedora OS_VER=37 PMDK_CC=clang PMDK_CXX=clang++ TEST_BUILD=nondebug",
+                 "OS=centos OS_VER=7 FAULT_INJECTION=1 TEST_BUILD=debug",
+                 "OS=centos OS_VER=7 FAULT_INJECTION=1 TEST_BUILD=nondebug",
                 ]
     steps:
       - name: Clone the git repo
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 62bb6bb74b0..c1fb676fc74 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -14,27 +14,25 @@ jobs:
     name: Linux
     runs-on: ubuntu-latest
     env:
-      # use org's Private Access Token to log in to GitHub Container Registry
-      DOC_UPDATE_GITHUB_TOKEN: ${{ secrets.DOC_UPDATE_GITHUB_TOKEN }}
-      HOST_WORKDIR: /home/runner/work/pmdk/pmdk
-      WORKDIR:      utils/docker
-      PMDK_CC:      gcc
-      PMDK_CXX:     g++
-      MAKE_PKG:     0
-      VALGRIND:     1
-      SRC_CHECKERS: 0
+      HOST_WORKDIR:    /home/runner/work/pmdk/pmdk
+      WORKDIR:         utils/docker
+      PMDK_CC:         gcc
+      PMDK_CXX:        g++
+      MAKE_PKG:        0
+      SRC_CHECKERS:    0
+      OS:              ubuntu
+      OS_VER:          22.04
+      FAULT_INJECTION: 1
     strategy:
       # Introduced to stop sporadically failing Codecov uploader (COVERAGE=1)
       # from stopping all other builds.
       fail-fast: false
       matrix:
-        CONFIG: [
-                 "N=1 OS=ubuntu OS_VER=22.04 FAULT_INJECTION=1 TEST_BUILD=debug",
-                 "N=2 OS=ubuntu OS_VER=22.04 FAULT_INJECTION=1 TEST_BUILD=nondebug UBSAN=1",
-                 "N=3 OS=ubuntu OS_VER=22.04 PMDK_CC=clang PMDK_CXX=clang++ TEST_BUILD=debug",
-                 "N=4 OS=ubuntu OS_VER=22.04 PMDK_CC=clang PMDK_CXX=clang++ TEST_BUILD=nondebug AUTO_DOC_UPDATE=1",
-                 "N=5 OS=ubuntu OS_VER=22.04 COVERAGE=1 FAULT_INJECTION=1 TEST_BUILD=debug",
-                ]
+        include:
+          - TEST_BUILD: debug
+            COVERAGE: 1
+          - TEST_BUILD: nondebug
+            COVERAGE: 0
     steps:
       - name: Clone the git repo
         uses: actions/checkout@v3
@@ -44,8 +42,11 @@ jobs:
       - name: Get system information
         run: ./$WORKDIR/get-system-info.sh
 
-      - name: Pull or rebuild the image
-        run: cd $WORKDIR && ${{ matrix.CONFIG }} ./pull-or-rebuild-image.sh
+      - name: Pull the image
+        run: cd $WORKDIR && ./pull-or-rebuild-image.sh
 
       - name: Run the build
-        run: cd $WORKDIR && ${{ matrix.CONFIG }} ./build-CI.sh
+        env:
+          TEST_BUILD: ${{ matrix.TEST_BUILD }}
+          COVERAGE: ${{ matrix.COVERAGE }}
+        run: cd $WORKDIR && ./build-CI.sh